{"id":"CVE-2022-27775","aliases":["ALPINE-CVE-2022-27775","ALSA-2022:8299","BELL-CVE-2022-27775","CURL-CVE-2022-27775","DEBIAN-CVE-2022-27775","DSA-5197-1","EUVD-2022-32271","GHSA-fx56-rj7x-688m","JLSEC-2026-387","MGASA-2022-0159","OESA-2022-1659","RHSA-2022:8299","RLSA-2022:8299","SUSE-SU-2022:1657-1","UBUNTU-CVE-2022-27775","USN-5397-1","openSUSE-SU-2024:12028-1"],"status":"published","title":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by...","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection 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information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-06-01T00:00:00Z","modified":"2026-10-14T16:20:04.247Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:34:34.250357Z"}],"euvd":[{"id":"EUVD-2022-32271","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-06-01T00:00:00Z","modified":"2026-10-14T16:20:04Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T17:27:14.304159Z"}],"ghsa":[{"id":"GHSA-fx56-rj7x-688m","title":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by...","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-06-03T00:01:03Z","modified":"2026-10-14T18:32:30Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:13:27.339015Z"}],"nvd":[{"id":"CVE-2022-27775","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-06-02T14:15:43.51Z","modified":"2026-10-14T17:17:36.543Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:07:21.261605Z"}],"osv":[{"id":"ALPINE-CVE-2022-27775","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-06-02T14:15:43.51Z","modified":"2026-11-03T07:18:33.144619661Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T07:51:12.284675Z"},{"id":"BELL-CVE-2022-27775","title":"CVE-2022-27775 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:14:22.129638Z","modified":"2026-01-26T09:46:53.505048Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:28:17.151188Z"},{"id":"CVE-2022-27775","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-06-01T00:00:00Z","modified":"2026-10-28T02:30:21.801189442Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:44:24.758293Z"},{"id":"DEBIAN-CVE-2022-27775","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-06-02T14:15:43.51Z","modified":"2026-11-03T08:03:51.017093265Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T08:23:57.167851Z"},{"id":"JLSEC-2026-387","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2026-05-04T13:12:06.605Z","modified":"2026-07-18T00:00:45.751769366Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:47:18.573531Z"},{"id":"OESA-2022-1659","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):\r\n\r\nThis security flaw in curl allows to reuse an OAUTH2 authenticated connection without properly ensuring that the connection is authenticated with the same credentials set by this transport, this issue can lead to authentication bypasses, either by mistake or by malicious actors.(CVE-2022-22576)\n\nWhen asked, curl does an HTTP(S) redirect. curl also supports authentication. When providing a user and password for a URL with a given hostname, curl makes an effort not to pass these credentials to other hosts in redirects unless permissions with special options are granted. This \"same host check\" has been flawed since its introduction. It does not work with cross-protocol redirection, nor does it treat different port numbers as separate hosts. This results in leaking credentials to other servers when curl redirects from authentication protected HTTP(S) URLs to other protocols and port numbers. It could also leak TLS SRP credentials in this way. By default, curl only allows redirects to HTTP(S) and FTP(S), but you can ask to allow redirects to all curl-supported protocols.(CVE-2022-27774)\n\nThis issue with curl occurs due to a logical bug where the configuration matching function does not take into account the IPv6 address zone id, which can cause curl to reuse the wrong connection when one transfer uses the zone id and subsequent transfers use another.(CVE-2022-27775)\n\nThis security flaw in curl allows leaking authentication or cookie header data over HTTP to redirect to the same host but a different port number, for applications passing custom Authorization: or Cookie: headers to the same set of headers Sending to servers on different port numbers is a problem, and these headers often contain privacy-sensitive information or data.(CVE-2022-27776)","status":"published","published":"2022-05-18T11:04:56Z","modified":"2026-08-18T01:16:31.123263858Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:52:39.528805Z"},{"id":"RHSA-2022:8299","title":"Red Hat Security Advisory: curl security update","status":"published","published":"2024-09-16T08:04:13Z","modified":"2026-06-30T10:02:58Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:10.139266Z"},{"id":"RLSA-2022:8299","title":"Low: curl security update","description":"The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.\n\nSecurity Fix(es):\n\n* curl: bad local IPv6 connection reuse (CVE-2022-27775)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 9.1 Release Notes linked from the References section.","status":"published","published":"2022-11-15T06:20:45Z","modified":"2026-02-05T15:00:08.201339Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:24.322216Z"},{"id":"UBUNTU-CVE-2022-27775","description":"An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.","status":"published","published":"2022-04-27T06:00:00Z","modified":"2026-05-29T18:00:19.352805442Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T16:53:53.899276Z"},{"id":"ALSA-2022:8299","title":"Low: curl security update","description":"The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.\n\nSecurity Fix(es):\n\n* curl: bad local IPv6 connection reuse (CVE-2022-27775)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2022-11-15T00:00:00Z","modified":"2026-10-29T11:31:04.851183366Z","updated_at":"2026-11-02T15:27:51.655726Z"},{"id":"CURL-CVE-2022-27775","title":"Bad local IPv6 connection reuse","description":"libcurl keeps previously used connections in a connection pool for subsequent\ntransfers to reuse, if one of them matches the setup.\n\nDue to errors in the logic, the config matching function did not take the IPv6\naddress zone id into account which could lead to libcurl reusing the wrong\nconnection when one transfer uses a zone id and a subsequent transfer uses\nanother (or no) zone id.","status":"published","published":"2022-04-27T08:00:00Z","modified":"2026-10-25T01:04:43.739101686Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"DSA-5197-1","title":"curl - security update","status":"published","published":"2022-08-01T00:00:00Z","modified":"2026-03-09T02:10:41.680987Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"MGASA-2022-0159","title":"Updated curl packages fix security vulnerability","description":"OAUTH2 bearer bypass in connection re-use. (CVE-2022-22576)\nCredential leak on redirect. (CVE-2022-27774)\nBad local IPv6 connection reuse. (CVE-2022-27775)\nAuth/cookie leak on redirect. (CVE-2022-27776)\n","status":"published","published":"2022-05-02T19:44:52Z","modified":"2026-04-16T04:43:09.028898805Z","updated_at":"2026-11-02T15:49:41.849028Z"},{"id":"openSUSE-SU-2024:12028-1","title":"curl-7.83.0-1.1 on GA media","description":"These are all security issues fixed in the curl-7.83.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:40:43.406508Z","updated_at":"2026-11-02T16:58:35.485255Z"},{"id":"SUSE-SU-2022:1657-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2022-27776: Fixed auth/cookie leak on redirect (bsc#1198766)\n- CVE-2022-27775: Fixed bad local IPv6 connection reuse (bsc#1198723)\n- CVE-2022-22576: Fixed OAUTH2 bearer bypass in connection re-use (bsc#1198614)\n","status":"published","published":"2022-05-13T13:39:13Z","modified":"2026-02-04T02:40:10.688131Z","updated_at":"2026-11-02T15:53:50.513981Z"},{"id":"USN-5397-1","title":"curl vulnerabilities","description":"Patrick Monnerat discovered that curl incorrectly handled certain OAUTH2.\nAn attacker could possibly use this issue to access sensitive information.\n(CVE-2022-22576)\n\nHarry Sintonen discovered that curl incorrectly handled certain requests.\nAn attacker could possibly use this issue to expose sensitive information.\n(CVE-2022-27774, CVE-2022-27775, CVE-2022-27776)\n","status":"published","published":"2022-04-28T18:23:23Z","modified":"2026-05-29T18:00:43.654395992Z","updated_at":"2026-11-02T16:58:16.20937Z"}]}}