{"id":"CVE-2026-80230","aliases":["ALPINE-CVE-2026-80230","AZL-99770","AZL-99789","AZL-99816","AZL-99846","AZL-99873","BELL-CVE-2026-80230","CLSA-2026-1789899321","CLSA-2026-1789899690","CLSA-2026-1789899988","CLSA-2026-1789900215","CLSA-2026-1789900426","CLSA-2026-1790152441","CLSA-2026-1790154364","CURL-CVE-2026-80230","DEBIAN-CVE-2026-80230","EUVD-2026-72168","GHSA-2xgv-7q8p-67gc","MGASA-2026-0515","OESA-2026-4124","OESA-2026-4125","OESA-2026-4126","OESA-2026-4127","OESA-2026-4128","RHSA-2026:63161","ROOT-OS-ALPINE-315-CVE-2026-80230","ROOT-OS-ALPINE-317-CVE-2026-80230","ROOT-OS-ALPINE-320-CVE-2026-80230","ROOT-OS-ALPINE-321-CVE-2026-80230","ROOT-OS-ALPINE-322-CVE-2026-80230","ROOT-OS-DEBIAN-12-CVE-2026-80230","ROOT-OS-DEBIAN-13-CVE-2026-80230","SUSE-SU-2026:23498-1","SUSE-SU-2026:23521-1","SUSE-SU-2026:23638-1","SUSE-SU-2026:3958-1","SUSE-SU-2026:4047-1","SUSE-SU-2026:4048-1","SUSE-SU-2026:4071-1","UBUNTU-CVE-2026-80230","USN-8820-1","openSUSE-SU-2026:11696-1","openSUSE-SU-2026:21774-1"],"status":"published","title":"OpenSSL pinning bypass","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00371,"percentile":0.31371,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2026-09-02T08:00:00Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Alpine:v3.23","package":"curl","fixed_in":["8.22.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"curl","fixed_in":["8.22.0-r0"],"sources":["osv"]},{"ecosystem":"Azure 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pinning bypass","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T17:48:16.262Z","modified":"2026-09-15T06:03:10.429Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-295","CWE-295"],"updated_at":"2026-11-02T13:45:36.695039Z"}],"euvd":[{"id":"EUVD-2026-72168","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T17:48:16Z","modified":"2026-09-15T06:03:10Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T17:28:19.01786Z"}],"ghsa":[{"id":"GHSA-2xgv-7q8p-67gc","title":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer...","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:34:39Z","modified":"2026-09-08T21:34:07Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:11:35.275364Z"}],"nvd":[{"id":"CVE-2026-80230","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22.327Z","modified":"2026-09-15T07:16:30.337Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:12:44.082631Z"}],"osv":[{"id":"ALPINE-CVE-2026-80230","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22.327Z","modified":"2026-10-01T02:17:49.413182679Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:50.764331Z"},{"id":"BELL-CVE-2026-80230","status":"published","published":"2026-09-04T06:05:07.821805Z","modified":"2026-09-10T07:15:05.988236971Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:26.041478Z"},{"id":"CVE-2026-80230","title":"OpenSSL pinning bypass","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T17:48:16.262Z","modified":"2026-10-28T11:00:39.051288266Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:45:17.44708Z"},{"id":"DEBIAN-CVE-2026-80230","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and `CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on connections established without a presented server certificate. Bypassing the pinning check under these disabled-verification conditions allows unauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22.327Z","modified":"2026-10-01T03:03:47.249356419Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:46:04.001673Z"},{"id":"OESA-2026-4124","title":"curl security update","description":"cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.\r\n\r\nSecurity Fix(es):\n\nSuccessfully using libcurl to do a transfer to a specific HTTP origin\n(`hostA`) with **Digest** authentication and then changing the origin to a\ndifferent one (`hostB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Authorization:` header field meant for `hostA`,\nto `hostB`.(CVE-2026-11856)\n\nA flaw in libcurl\u0026apos;s handling of HTTP/2 Server Push streams, when the parent\nhandle is set to share connections with other handles, can lead to\nuse-after-free in the cleanup process.(CVE-2026-18924)\n\nA flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given\nhostname using Negotiate authentication, when the initial request is done\nusing empty credentials. This can make user B\u0026apos;s request get sent over user A\u0026apos;s\npreviously authenticated connection.(CVE-2026-19931)\n\nWhen `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.(CVE-2026-80230)\n\nA flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup\nfor a given hostname even when using a different Native CA Store setting\n(`CURLSSLOPT_NATIVE_CA`) than when the connection was created.(CVE-2026-80231)\n\nWhen libpsl support is enabled, libcurl fails to enforce the Public Suffix\nList boundary check when processing a `Set-Cookie` header where the `Domain`\nattribute explicitly matches an origin host that is itself a public suffix\n(e.g., `Domain=co.uk` set by `co.uk`).\n\nInstead of coercing it into a strict host-only cookie, libcurl saves the\ncookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is\ninappropriately included in subsequent outbound requests or HTTP redirects to\narbitrary sibling subdomains under the same public suffix (e.g.,\n`attacker.co.uk`).(CVE-2026-82209)","status":"published","published":"2026-09-25T01:28:45Z","modified":"2026-09-25T01:45:14.616534315Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4125","title":"curl security update","description":"cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.\r\n\r\nSecurity Fix(es):\n\nSuccessfully using libcurl to do a transfer to a specific HTTP origin\n(`hostA`) with **Digest** authentication and then changing the origin to a\ndifferent one (`hostB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Authorization:` header field meant for `hostA`,\nto `hostB`.(CVE-2026-11856)\n\nA flaw in libcurl\u0026apos;s handling of HTTP/2 Server Push streams, when the parent\nhandle is set to share connections with other handles, can lead to\nuse-after-free in the cleanup process.(CVE-2026-18924)\n\nA flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given\nhostname using Negotiate authentication, when the initial request is done\nusing empty credentials. This can make user B\u0026apos;s request get sent over user A\u0026apos;s\npreviously authenticated connection.(CVE-2026-19931)\n\nWhen `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.(CVE-2026-80230)\n\nA flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup\nfor a given hostname even when using a different Native CA Store setting\n(`CURLSSLOPT_NATIVE_CA`) than when the connection was created.(CVE-2026-80231)\n\nWhen libpsl support is enabled, libcurl fails to enforce the Public Suffix\nList boundary check when processing a `Set-Cookie` header where the `Domain`\nattribute explicitly matches an origin host that is itself a public suffix\n(e.g., `Domain=co.uk` set by `co.uk`).\n\nInstead of coercing it into a strict host-only cookie, libcurl saves the\ncookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is\ninappropriately included in subsequent outbound requests or HTTP redirects to\narbitrary sibling subdomains under the same public suffix (e.g.,\n`attacker.co.uk`).(CVE-2026-82209)","status":"published","published":"2026-09-25T01:28:45Z","modified":"2026-09-25T01:45:09.204392978Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4126","title":"curl security update","description":"cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.\r\n\r\nSecurity Fix(es):\n\nSuccessfully using libcurl to do a transfer to a specific HTTP origin\n(`hostA`) with **Digest** authentication and then changing the origin to a\ndifferent one (`hostB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Authorization:` header field meant for `hostA`,\nto `hostB`.(CVE-2026-11856)\n\nA flaw in the libcurl SASL negotiation for LDAP authentication allows an\nincomplete handshake sequence to be misinterpreted as a successful\ncryptographic verification. An attacker executing a Man-in-the-Middle (MITM)\nattack can inject a premature or shortcut response that bypasses complete peer\nvalidation.(CVE-2026-13608)\n\nA flaw in libcurl\u0026apos;s handling of HTTP/2 Server Push streams, when the parent\nhandle is set to share connections with other handles, can lead to\nuse-after-free in the cleanup process.(CVE-2026-18924)\n\nA flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given\nhostname using Negotiate authentication, when the initial request is done\nusing empty credentials. This can make user B\u0026apos;s request get sent over user A\u0026apos;s\npreviously authenticated connection.(CVE-2026-19931)\n\nWhen `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.(CVE-2026-80230)\n\nA flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup\nfor a given hostname even when using a different Native CA Store setting\n(`CURLSSLOPT_NATIVE_CA`) than when the connection was created.(CVE-2026-80231)\n\nWhen libpsl support is enabled, libcurl fails to enforce the Public Suffix\nList boundary check when processing a `Set-Cookie` header where the `Domain`\nattribute explicitly matches an origin host that is itself a public suffix\n(e.g., `Domain=co.uk` set by `co.uk`).\n\nInstead of coercing it into a strict host-only cookie, libcurl saves the\ncookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is\ninappropriately included in subsequent outbound requests or HTTP redirects to\narbitrary sibling subdomains under the same public suffix (e.g.,\n`attacker.co.uk`).(CVE-2026-82209)","status":"published","published":"2026-09-25T01:28:47Z","modified":"2026-09-25T01:45:13.706912325Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4127","title":"curl security update","description":"cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.\r\n\r\nSecurity Fix(es):\n\nSuccessfully using libcurl to do a transfer to a specific HTTP origin\n(`hostA`) with **Digest** authentication and then changing the origin to a\ndifferent one (`hostB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Authorization:` header field meant for `hostA`,\nto `hostB`.(CVE-2026-11856)\n\nA flaw in the libcurl SASL negotiation for LDAP authentication allows an\nincomplete handshake sequence to be misinterpreted as a successful\ncryptographic verification. An attacker executing a Man-in-the-Middle (MITM)\nattack can inject a premature or shortcut response that bypasses complete peer\nvalidation.(CVE-2026-13608)\n\nA flaw in libcurl\u0026apos;s handling of HTTP/2 Server Push streams, when the parent\nhandle is set to share connections with other handles, can lead to\nuse-after-free in the cleanup process.(CVE-2026-18924)\n\nA flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given\nhostname using Negotiate authentication, when the initial request is done\nusing empty credentials. This can make user B\u0026apos;s request get sent over user A\u0026apos;s\npreviously authenticated connection.(CVE-2026-19931)\n\nWhen `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.(CVE-2026-80230)\n\nA flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup\nfor a given hostname even when using a different Native CA Store setting\n(`CURLSSLOPT_NATIVE_CA`) than when the connection was created.(CVE-2026-80231)\n\nWhen libpsl support is enabled, libcurl fails to enforce the Public Suffix\nList boundary check when processing a `Set-Cookie` header where the `Domain`\nattribute explicitly matches an origin host that is itself a public suffix\n(e.g., `Domain=co.uk` set by `co.uk`).\n\nInstead of coercing it into a strict host-only cookie, libcurl saves the\ncookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is\ninappropriately included in subsequent outbound requests or HTTP redirects to\narbitrary sibling subdomains under the same public suffix (e.g.,\n`attacker.co.uk`).(CVE-2026-82209)","status":"published","published":"2026-09-25T01:28:47Z","modified":"2026-09-25T01:45:14.613657768Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"OESA-2026-4128","title":"curl security update","description":"cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.\r\n\r\nSecurity Fix(es):\n\nSuccessfully using libcurl to do a transfer to a specific HTTP origin\n(`hostA`) with **Digest** authentication and then changing the origin to a\ndifferent one (`hostB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Authorization:` header field meant for `hostA`,\nto `hostB`.(CVE-2026-11856)\n\nA flaw in the libcurl SASL negotiation for LDAP authentication allows an\nincomplete handshake sequence to be misinterpreted as a successful\ncryptographic verification. An attacker executing a Man-in-the-Middle (MITM)\nattack can inject a premature or shortcut response that bypasses complete peer\nvalidation.(CVE-2026-13608)\n\nA flaw in libcurl\u0026apos;s handling of HTTP/2 Server Push streams, when the parent\nhandle is set to share connections with other handles, can lead to\nuse-after-free in the cleanup process.(CVE-2026-18924)\n\nA flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given\nhostname using Negotiate authentication, when the initial request is done\nusing empty credentials. This can make user B\u0026apos;s request get sent over user A\u0026apos;s\npreviously authenticated connection.(CVE-2026-19931)\n\nWhen `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.(CVE-2026-80230)\n\nA flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup\nfor a given hostname even when using a different Native CA Store setting\n(`CURLSSLOPT_NATIVE_CA`) than when the connection was created.(CVE-2026-80231)\n\nWhen libpsl support is enabled, libcurl fails to enforce the Public Suffix\nList boundary check when processing a `Set-Cookie` header where the `Domain`\nattribute explicitly matches an origin host that is itself a public suffix\n(e.g., `Domain=co.uk` set by `co.uk`).\n\nInstead of coercing it into a strict host-only cookie, libcurl saves the\ncookie with wildcard domain scope (`.co.uk`). Consequently, the cookie is\ninappropriately included in subsequent outbound requests or HTTP redirects to\narbitrary sibling subdomains under the same public suffix (e.g.,\n`attacker.co.uk`).(CVE-2026-82209)","status":"published","published":"2026-09-25T01:28:47Z","modified":"2026-09-25T01:45:14.618674629Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:52:47.643553Z"},{"id":"RHSA-2026:63161","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","status":"published","published":"2026-09-22T10:17:20Z","modified":"2026-10-20T10:43:35.797896375Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:21.91255Z"},{"id":"UBUNTU-CVE-2026-80230","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable standard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and `CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on connections established without a presented server certificate. Bypassing the pinning check under these disabled-verification conditions allows unauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:00Z","modified":"2026-10-17T13:01:10.401275818Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:57:18.015985Z"},{"id":"AZL-99770","title":"CVE-2026-80230 affecting package curl for versions less than 8.11.1-12","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:26.480138Z"},{"id":"AZL-99789","title":"CVE-2026-80230 affecting package mysql 8.0.46-1","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22Z","modified":"2026-09-08T12:41:18.143057Z","updated_at":"2026-11-02T15:28:12.596039Z"},{"id":"AZL-99816","title":"CVE-2026-80230 affecting package rust 1.75.0-30","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22Z","modified":"2026-09-08T12:41:33.132064Z","updated_at":"2026-11-02T15:28:12.596039Z"},{"id":"AZL-99846","title":"CVE-2026-80230 affecting package rust 1.90.0-10","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22Z","modified":"2026-09-08T12:41:33.29529Z","updated_at":"2026-11-02T15:28:12.596039Z"},{"id":"AZL-99873","title":"CVE-2026-80230 affecting package tensorflow 2.16.1-11","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-06T18:17:22Z","modified":"2026-09-08T12:42:25.159089Z","updated_at":"2026-11-02T15:28:12.596039Z"},{"id":"CLSA-2026-1789899321","title":"curl: Fix of 3 CVEs","description":"- CVE-2026-18924: use-after-free in the cleanup of HTTP/2 server push\n  transfers, because a pushed transfer did not inherit the parent handle's\n  share and could therefore outlive a shared connection\n- CVE-2026-80230: public key pinning was not enforced when the server\n  presented no certificate and both peer and host verification were\n  disabled, so an unauthenticated connection succeeded where it should have\n  been rejected\n- CVE-2026-82209: a cookie whose Domain attribute exactly matched a public\n  suffix was stored with wildcard domain scope instead of being coerced to\n  host-only, so it was sent to arbitrary sibling subdomains under that\n  public suffix","status":"published","published":"2026-09-20T10:15:34Z","modified":"2026-10-26T09:31:43.857678471Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1789899690","title":"curl: Fix of 3 CVEs","description":"- CVE-2026-18924: use-after-free in the cleanup of HTTP/2 server push\n  transfers, because a pushed transfer did not inherit the parent handle's\n  share and could therefore outlive a shared connection\n- CVE-2026-80230: public key pinning was not enforced when the server\n  presented no certificate and both peer and host verification were\n  disabled, so an unauthenticated connection succeeded where it should have\n  been rejected\n- CVE-2026-82209: a cookie whose Domain attribute exactly matched a public\n  suffix was stored with wildcard domain scope instead of being coerced to\n  host-only, so it was sent to arbitrary sibling subdomains under that\n  public suffix","status":"published","published":"2026-09-20T10:21:43Z","modified":"2026-10-26T09:31:51.524453288Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1789899988","title":"curl: Fix of 3 CVEs","description":"- CVE-2026-18924: use-after-free in the cleanup of HTTP/2 server push\n  transfers, because a pushed transfer did not inherit the parent handle's\n  share and could therefore outlive a shared connection\n- CVE-2026-80230: public key pinning was not enforced when the server\n  presented no certificate and both peer and host verification were\n  disabled, so an unauthenticated connection succeeded where it should have\n  been rejected\n- CVE-2026-82209: a cookie whose Domain attribute exactly matched a public\n  suffix was stored with wildcard domain scope instead of being coerced to\n  host-only, so it was sent to arbitrary sibling subdomains under that\n  public suffix","status":"published","published":"2026-09-20T10:26:40Z","modified":"2026-10-26T09:30:55.755083325Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1789900215","title":"Fix CVE(s): CVE-2026-18924, CVE-2026-80230, CVE-2026-82209","description":"   * SECURITY UPDATE: HTTP/2 server push use-after-free\n     - debian/patches/CVE-2026-18924.patch: make a pushed transfer\n       inherit the parent handle's share in lib/http2.c, so a connection\n       held by a share cannot be freed while the pushed transfer still\n       uses it.\n     - CVE-2026-18924\n   * SECURITY UPDATE: public key pinning bypassed when no server certificate\n     - debian/patches/CVE-2026-80230.patch: in lib/vtls/openssl.c, treat\n       a missing server certificate as acceptable only when no pinned\n       public key is configured, so pinning is still enforced with peer\n       and host verification disabled.\n     - CVE-2026-80230\n   * SECURITY UPDATE: cookie for an exact PSL domain kept wildcard scope\n     - debian/patches/CVE-2026-82209.patch: in lib/cookie.c, clear the\n       tailmatch flag when a cookie's Domain attribute is itself a public\n       suffix, so it becomes host-only instead of being sent to sibling\n       subdomains.\n     - CVE-2026-82209","status":"published","published":"2026-09-20T10:30:28Z","modified":"2026-10-26T09:32:04.225824245Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1789900426","title":"Fix CVE(s): CVE-2026-80230, CVE-2026-82209","description":"   * SECURITY UPDATE: public key pinning bypassed when no server certificate\n     - debian/patches/CVE-2026-80230.patch: in lib/vtls/openssl.c, treat\n       a missing server certificate as acceptable only when no pinned\n       public key is configured, so pinning is still enforced with peer\n       and host verification disabled.\n     - CVE-2026-80230\n   * SECURITY UPDATE: cookie for an exact PSL domain kept wildcard scope\n     - debian/patches/CVE-2026-82209.patch: in lib/cookie.c, clear the\n       tailmatch flag when a cookie's Domain attribute is itself a public\n       suffix, so it becomes host-only instead of being sent to sibling\n       subdomains.\n     - CVE-2026-82209","status":"published","published":"2026-09-20T10:33:58Z","modified":"2026-10-26T09:32:02.141620678Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1790152441","title":"curl: Fix of 3 CVEs","description":"- CVE-2026-18924: use-after-free in the cleanup of HTTP/2 server push\n  transfers, because a pushed transfer did not inherit the parent handle's\n  share and could therefore outlive a shared connection\n- CVE-2026-80230: public key pinning was not enforced when the server\n  presented no certificate and both peer and host verification were\n  disabled, so an unauthenticated connection succeeded where it should have\n  been rejected\n- CVE-2026-82209: a cookie whose Domain attribute exactly matched a public\n  suffix was stored with wildcard domain scope instead of being coerced to\n  host-only, so it was sent to arbitrary sibling subdomains under that\n  public suffix\n- remove upstream test1701, which performs an HTTP/2 Upgrade on an HTTP/1.1\n  POST; nghttp2 1.43 no longer supports Upgrade requests carrying a body,\n  so the test fails against the nghttpx in the build root","status":"published","published":"2026-09-23T08:34:13Z","modified":"2026-10-26T09:31:36.037261546Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CLSA-2026-1790154364","title":"curl: Fix of 3 CVEs","description":"- CVE-2026-18924: use-after-free in the cleanup of HTTP/2 server push\n  transfers, because a pushed transfer did not inherit the parent handle's\n  share and could therefore outlive a shared connection\n- CVE-2026-80230: public key pinning was not enforced when the server\n  presented no certificate and both peer and host verification were\n  disabled, so an unauthenticated connection succeeded where it should have\n  been rejected\n- CVE-2026-82209: a cookie whose Domain attribute exactly matched a public\n  suffix was stored with wildcard domain scope instead of being coerced to\n  host-only, so it was sent to arbitrary sibling subdomains under that\n  public suffix\n- remove upstream test1701, which performs an HTTP/2 Upgrade on an HTTP/1.1\n  POST; nghttp2 1.43 no longer supports Upgrade requests carrying a body,\n  so the test fails against the nghttpx in the build root","status":"published","published":"2026-09-23T09:06:16Z","modified":"2026-10-26T09:30:50.806870154Z","updated_at":"2026-11-02T15:43:48.28229Z"},{"id":"CURL-CVE-2026-80230","title":"OpenSSL pinning bypass","description":"When `CURLOPT_PINNEDPUBLICKEY` is configured alongside options that disable\nstandard peer verification (`CURLOPT_SSL_VERIFYPEER = 0` and\n`CURLOPT_SSL_VERIFYHOST = 0`), libcurl fails to enforce public key pinning on\nconnections established without a presented server certificate. Bypassing the\npinning check under these disabled-verification conditions allows\nunauthenticated connections to succeed when they should be rejected.","status":"published","published":"2026-09-02T08:00:00Z","modified":"2026-10-25T01:05:43.819212541Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"MGASA-2026-0515","title":"Updated curl package fixes security vulnerabilities","description":"curl 8.23.0 has been released. It fixes 24 CVEs since 8.22.0, listed at\nhttps://curl.se/docs/security.html\nNot all of theses CVEs affect Mageia. Of the ones fixed in 8.23.0, these\nare the ones that do:\nCVE-2026-86410: redirect to SFTP or SCP bypasses host verification\nCVE-2026-86412: server-set cookie erases cookie jar\nCVE-2026-86413: Negotiate credentials sent to redirected origin\nCVE-2026-86414: leaking host credentials to HTTP proxy\nCVE-2026-86415: auto client cert connection reuse mixup\nCVE-2026-87861: cross-origin reuse of a Negotiate connection\nCVE-2026-87862: HSTS cache import drops longer-lived child\nCVE-2026-87863: HSTS response erases persisted entries\nCVE-2026-92386: server-set cookie aborts cookie jar load\nCVE-2026-92387: never-ending loop via server response omission\nCVE-2026-92388: FTP wildcard write callback mixup\nCVE-2026-92389: TFTP direction confusion\nCVE-2026-92390: -J no-clobber guarantee bypassed with 103 early hints\nCVE-2026-92391: curl_mime_free stack overflow by recursion\nCVE-2026-92392: HTTP/2 upload Use-After-Free\nCVE-2026-94265: Authorization: Negotiate sent to foreign origin\nCVE-2026-94266: password leak in CURLINFO_EFFECTIVE_URL\nCVE-2026-107929: local interface connection reuse mixup\nThere were also some CVE IDs released at the same time that were fixed\nearlier, in 8.22.0, but just announced now:\nCVE-2026-86409: stale SigV4 headers sent unintended\nCVE-2026-86411: FTP connection reuse inherits client-certificate\nCVE-2026-87864: IMAP APPEND plus CRLF conversion command injection\nHere are the CVEs fixed in 8.22.0, which wasn't released in mga10 and so\nare only getting fixed now:\nCVE-2026-13608: OpenLDAP SASL authentication bypass\nCVE-2026-18924: HTTP/2 server push UAF\nCVE-2026-19931: Negotiate ambient user conn reuse\nCVE-2026-80229: OpenSSL provider use-after-free\nCVE-2026-80230: OpenSSL pinning bypass\nCVE-2026-80255: secure cookie attribute bypass with tab\nCVE-2026-82209: domain-scoped PSL domain cookie\n","status":"published","published":"2026-10-17T03:21:49Z","modified":"2026-10-17T03:43:01.411193688Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:11696-1","title":"curl-8.22.0-1.1 on GA media","description":"These are all security issues fixed in the curl-8.22.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-09-07T00:00:00Z","modified":"2026-09-08T09:00:05.876145789Z","updated_at":"2026-11-02T16:58:39.516824Z"},{"id":"openSUSE-SU-2026:21774-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-5773: wrong reuse of SMB connection (bsc#1262633).\n- CVE-2026-7168: cross-proxy Digest auth state leak (bsc#1263440).\n- CVE-2026-8926: password leak with netrc and user in URL (bsc#1268412).\n- CVE-2026-13608: OpenLDAP SASL authentication bypass (bsc#1277476).\n- CVE-2026-80229: OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass (bsc#1277480).\n","status":"published","published":"2026-09-06T16:56:18Z","modified":"2026-09-09T18:23:14.977934943Z","updated_at":"2026-11-02T16:58:42.426393Z"},{"id":"ROOT-OS-ALPINE-315-CVE-2026-80230","title":"CVE-2026-80230 in curl - Patched by Root","description":"Root has patched CVE-2026-80230 in the curl package for Root:Alpine:3.15. Multiple fixed versions available.","status":"published","published":"2026-11-04T10:54:49Z","modified":"2026-11-04T11:15:04.137640881Z","updated_at":"2026-11-04T11:38:21.953745Z"},{"id":"ROOT-OS-ALPINE-317-CVE-2026-80230","title":"CVE-2026-80230 in curl - Patched by Root","description":"Root has patched CVE-2026-80230 in the curl package for Root:Alpine:3.17. Multiple fixed versions available.","status":"published","published":"2026-11-04T16:15:55Z","modified":"2026-11-04T17:16:11.981240494Z","updated_at":"2026-11-04T17:43:22.558805Z"},{"id":"ROOT-OS-ALPINE-320-CVE-2026-80230","title":"CVE-2026-80230 in curl - Patched by Root","description":"Root has patched CVE-2026-80230 in the curl package for Root:Alpine:3.20. Multiple fixed versions available.","status":"published","published":"2026-09-29T09:40:45Z","modified":"2026-09-29T10:15:12.651315746Z","updated_at":"2026-11-02T15:53:28.544053Z"},{"id":"ROOT-OS-ALPINE-321-CVE-2026-80230","title":"CVE-2026-80230 in curl - Patched by Root","description":"Root has patched CVE-2026-80230 in the curl package for Root:Alpine:3.21. Multiple fixed versions available.","status":"published","published":"2026-11-03T11:37:01Z","modified":"2026-11-03T12:15:08.813499022Z","updated_at":"2026-11-03T12:31:35.467775Z"},{"id":"ROOT-OS-ALPINE-322-CVE-2026-80230","title":"CVE-2026-80230 in curl - Patched by Root","description":"Root has patched CVE-2026-80230 in the curl package for Root:Alpine:3.22. Multiple fixed versions available.","status":"published","published":"2026-10-19T06:56:08Z","modified":"2026-10-19T07:15:05.299885062Z","updated_at":"2026-11-02T15:53:28.544053Z"},{"id":"ROOT-OS-DEBIAN-12-CVE-2026-80230","title":"CVE-2026-80230 in curl - Patched by Root","description":"Root has patched CVE-2026-80230 in the curl package for Root:Debian:12. Multiple fixed versions available.","status":"published","published":"2026-11-04T06:00:50Z","modified":"2026-11-04T07:15:07.91924893Z","updated_at":"2026-11-04T07:32:10.855619Z"},{"id":"ROOT-OS-DEBIAN-13-CVE-2026-80230","title":"CVE-2026-80230 in curl - Patched by Root","description":"Root has patched CVE-2026-80230 in the curl package for Root:Debian:13. Multiple fixed versions available.","status":"published","published":"2026-11-03T10:50:30Z","modified":"2026-11-03T11:15:09.669694253Z","updated_at":"2026-11-03T11:30:16.221977Z"},{"id":"SUSE-SU-2026:23498-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-5773: wrong reuse of SMB connection (bsc#1262633).\n- CVE-2026-7168: cross-proxy Digest auth state leak (bsc#1263440).\n- CVE-2026-8926: password leak with netrc and user in URL (bsc#1268412).\n- CVE-2026-13608: OpenLDAP SASL authentication bypass (bsc#1277476).\n- CVE-2026-80229: OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass (bsc#1277480).\n","status":"published","published":"2026-09-06T16:57:12Z","modified":"2026-09-14T18:23:13.86762477Z","updated_at":"2026-11-02T15:54:03.991985Z"},{"id":"SUSE-SU-2026:23521-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-13608: flow in OpenLDAP SASL negotiation can cause an authentication bypass (bsc#1277476).\n- CVE-2026-80229: premature free can lead to OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass can allow unauthenticated connections to succeed (bsc#1277480).\n","status":"published","published":"2026-09-04T09:08:38Z","modified":"2026-09-15T18:23:09.020509501Z","updated_at":"2026-11-02T15:54:03.991985Z"},{"id":"SUSE-SU-2026:23638-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-5773: wrong reuse of SMB connection (bsc#1262633).\n- CVE-2026-7168: cross-proxy Digest auth state leak (bsc#1263440).\n- CVE-2026-8926: password leak with netrc and user in URL (bsc#1268412).\n- CVE-2026-13608: OpenLDAP SASL authentication bypass (bsc#1277476).\n- CVE-2026-80229: OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass (bsc#1277480).\n","status":"published","published":"2026-09-06T16:57:12Z","modified":"2026-09-29T18:23:10.493555771Z","updated_at":"2026-11-02T15:54:03.991985Z"},{"id":"SUSE-SU-2026:3958-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-5773: wrong reuse of SMB connection (bsc#1262633).\n- CVE-2026-7168: cross-proxy Digest auth state leak (bsc#1263440).\n- CVE-2026-8926: password leak with netrc and user in URL (bsc#1268412).\n- CVE-2026-13608: flow in OpenLDAP SASL negotiation can cause an authentication bypass (bsc#1277476).\n- CVE-2026-80229: premature free can lead to OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass can allow unauthenticated connections to succeed (bsc#1277480).\n\nChanges for curl:\n\n- Call http_size() first to prioritize Transfer-Encoding: chunked over a zero\n Content-Length empty body check (bsc#1264971)\n","status":"published","published":"2026-09-03T13:32:12Z","modified":"2026-09-13T18:23:12.410814638Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"SUSE-SU-2026:4047-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-5773: wrong reuse of SMB connection (bsc#1262633).\n- CVE-2026-7168: cross-proxy Digest auth state leak (bsc#1263440).\n- CVE-2026-8926: password leak with netrc and user in URL (bsc#1268412).\n- CVE-2026-13608: flow in OpenLDAP SASL negotiation can cause an authentication bypass (bsc#1277476).\n- CVE-2026-80229: premature free can lead to OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass can allow unauthenticated connections to succeed (bsc#1277480).\n\nChanges for curl:\n\n- Call http_size() first to prioritize Transfer-Encoding: chunked over a zero\n Content-Length empty body check (bsc#1264971)\n","status":"published","published":"2026-09-07T13:53:51Z","modified":"2026-09-13T18:23:18.224672627Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"SUSE-SU-2026:4048-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-13608: flow in OpenLDAP SASL negotiation can cause an authentication bypass (bsc#1277476).\n- CVE-2026-80229: premature free can lead to OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass can allow unauthenticated connections to succeed (bsc#1277480).\n","status":"published","published":"2026-09-07T13:54:13Z","modified":"2026-09-13T18:23:18.256605275Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"SUSE-SU-2026:4071-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2026-13608: flow in OpenLDAP SASL negotiation can cause an authentication bypass (bsc#1277476).\n- CVE-2026-80229: premature free can lead to OpenSSL provider use-after-free (bsc#1277479).\n- CVE-2026-80230: OpenSSL pinning bypass can allow unauthenticated connections to succeed (bsc#1277480).\n","status":"published","published":"2026-09-08T07:06:12Z","modified":"2026-09-13T18:23:19.864140343Z","updated_at":"2026-11-02T15:54:05.392906Z"},{"id":"USN-8820-1","title":"curl vulnerabilities","description":"Eunsoo Kim discovered that curl incorrectly handled SASL negotiation for\nLDAP authentication in certain circumstances. A machine-in-the-middle\nattacker could possibly use this issue to bypass peer validation. This\nissue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS.\n(CVE-2026-13608)\n\nStephan Zeisberg discovered that curl incorrectly handled HTTP/2 Server\nPush streams when sharing connections between handles. A remote attacker\ncould possibly use this issue to cause curl to crash, resulting in a denial\nof service, or execute arbitrary code. (CVE-2026-18924)\n\nStanislav Fort discovered that curl incorrectly managed the lifetime of\npooled TLS connections when using the multi interface. An attacker could\npossibly use this issue to cause curl to crash, resulting in a denial of\nservice, or execute arbitrary code. This issue only affected Ubuntu 26.04\nLTS. (CVE-2026-80229)\n\nStanislav Fort discovered that curl did not properly enforce public key\npinning when certificate verification was disabled in certain\ncircumstances. A remote attacker could possibly use this issue to bypass\npinning checks and cause curl to accept connections that should have been\nrejected. (CVE-2026-80230)\n\nStanislav Fort discovered that curl incorrectly handled the Secure\nattribute of cookies in certain circumstances. A remote attacker could\npossibly use this issue to obtain sensitive information. This issue only\naffected Ubuntu 26.04 LTS. (CVE-2026-80255)\n\nStanislav Fort discovered that curl did not properly enforce Public\nSuffix List boundaries when handling cookies in certain circumstances. A\nremote attacker could possibly use this issue to cause cookies to be sent\nto unrelated domains, resulting in sensitive information being exposed.\nThis issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04\nLTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-82209)\n\nAdy Elouej discovered that curl did not clear proxy authentication state\nbetween requests when reusing a handle with environment-variable proxy\nconfiguration. A remote attacker could possibly use this issue to obtain\nsensitive credentials. This issue was previously fixed in USN-8487-1, but\nthat fix was incomplete for Ubuntu 16.04 LTS. (CVE-2026-8927)","status":"published","published":"2026-09-24T20:13:19Z","modified":"2026-09-26T04:41:35.074747182Z","updated_at":"2026-11-02T16:58:26.907654Z"}]}}