{"id":"CVE-2022-22576","aliases":["ALPINE-CVE-2022-22576","ALSA-2022:5313","BELL-CVE-2022-22576","CLSA-2022-1655317708","CLSA-2022-1655317984","CLSA-2022-1655819051","CURL-CVE-2022-22576","DEBIAN-CVE-2022-22576","DLA-3085-1","DSA-5197-1","EUVD-2022-27722","GHSA-2r69-696x-qxj9","JLSEC-2026-385","MGASA-2022-0159","OESA-2022-1659","RHSA-2022:5245","RHSA-2022:5313","RLSA-2022:5313","SUSE-SU-2022:1657-1","SUSE-SU-2022:1680-1","UBUNTU-CVE-2022-22576","USN-5397-1","openSUSE-SU-2024:12028-1"],"status":"published","title":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which...","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap 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improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-05-26T00:00:00Z","modified":"2026-10-14T15:07:26.357Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:34:26.645563Z"}],"euvd":[{"id":"EUVD-2022-27722","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-05-26T00:00:00Z","modified":"2026-10-14T15:07:26Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T17:27:15.108271Z"}],"ghsa":[{"id":"GHSA-2r69-696x-qxj9","title":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which...","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-05-27T00:00:47Z","modified":"2026-10-14T18:32:31Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-287","CWE-306"],"updated_at":"2026-11-02T15:13:28.02433Z"}],"nvd":[{"id":"CVE-2022-22576","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-05-26T17:15:09.077Z","modified":"2026-10-14T16:17:25.16Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287","CWE-306"],"updated_at":"2026-11-02T14:07:21.261605Z"}],"osv":[{"id":"ALPINE-CVE-2022-22576","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-05-26T17:15:09.077Z","modified":"2026-11-03T07:18:33.0925329Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T07:51:12.284675Z"},{"id":"BELL-CVE-2022-22576","title":"CVE-2022-22576 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:15:52.189697Z","modified":"2026-01-26T09:45:38.148222Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:28:16.5265Z"},{"id":"CVE-2022-22576","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-05-26T00:00:00Z","modified":"2026-10-28T02:30:42.94177658Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:44:24.061177Z"},{"id":"JLSEC-2026-385","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2026-05-04T13:12:06.605Z","modified":"2026-07-18T00:00:31.018106859Z","cvss":[{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","level":"medium"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2022:5245","title":"Red Hat Security Advisory: curl security update","status":"published","published":"2024-09-16T08:05:40Z","modified":"2026-06-30T10:02:10Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RHSA-2022:5313","title":"Red Hat Security Advisory: curl security update","status":"published","published":"2024-09-16T08:05:32Z","modified":"2026-06-30T10:02:12Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RLSA-2022:5313","title":"Moderate: 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: OAUTH2 bearer bypass in connection re-use (CVE-2022-22576)\n\n* curl: credential leak on redirect (CVE-2022-27774)\n\n* curl: auth/cookie leak on redirect (CVE-2022-27776)\n\n* curl: TLS and SSH connection too eager reuse (CVE-2022-27782)\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.","status":"published","published":"2022-06-28T10:52:02Z","modified":"2026-02-05T05:30:11.502086Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:24.322216Z"},{"id":"UBUNTU-CVE-2022-22576","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-04-27T06:00:00Z","modified":"2026-10-17T12:56:01.79427696Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T16:53:52.391598Z"},{"id":"ALSA-2022:5313","title":"Moderate: 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.\nSecurity Fix(es):\n* curl: OAUTH2 bearer bypass in connection re-use (CVE-2022-22576)\n* curl: credential leak on redirect (CVE-2022-27774)\n* curl: auth/cookie leak on redirect (CVE-2022-27776)\n* curl: TLS and SSH connection too eager reuse (CVE-2022-27782)\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.","status":"published","published":"2022-06-30T00:00:00Z","modified":"2026-10-29T11:01:06.636197831Z","updated_at":"2026-11-02T15:27:51.655726Z"},{"id":"CLSA-2022-1655317708","title":"Fix CVE(s): CVE-2022-22576","description":"\n   * SECURITY UPDATE: Reusing OAUTH2-authenticated connections without\n     properly making sure that the connection was authenticated with the\n     same credentials\n     - debian/patches/CVE-2022-22576.patch: Check additional SASL\n       parameters for connection reuse\n     - CVE-2022-22576","status":"published","published":"2022-06-15T18:28:28Z","modified":"2026-06-04T10:03:45.322883Z","updated_at":"2026-11-02T15:43:40.176048Z"},{"id":"CLSA-2022-1655317984","title":"Fixed CVE-2022-22576 in curl","description":"- CVE-2022-22576: check additional SASL parameters for connection reuse","status":"published","published":"2022-06-15T18:33:04Z","modified":"2026-06-01T00:32:32.812376392Z","updated_at":"2026-11-02T15:43:40.176048Z"},{"id":"CLSA-2022-1655819051","title":"Fixed CVE-2022-22576 in curl","description":"- CVE-2022-22576: check additional SASL parameters for connection reuse","status":"published","published":"2022-06-21T13:44:11Z","modified":"2026-06-01T00:33:19.188080035Z","updated_at":"2026-11-02T15:43:40.176048Z"},{"id":"CURL-CVE-2022-22576","title":"OAUTH2 bearer bypass in connection reuse","description":"libcurl might reuse OAUTH2-authenticated connections without properly making\nsure that the connection was authenticated with the same credentials as set\nfor this transfer. This affects SASL-enabled protocols: SMTP(S), IMAP(S),\nPOP3(S) and LDAP(S) (OpenLDAP only).\n\nlibcurl maintains a pool of live connections after a transfer has completed\n(sometimes called the connection cache). This pool of connections is then gone\nthrough when a new transfer is requested and if there is a live connection\navailable that can be reused, it is preferred instead of creating a new one.\n\nDue to this security vulnerability, a connection that is successfully created\nand authenticated with a username + OAUTH2 bearer could subsequently be\nerroneously reused even for user + [other OAUTH2 bearer], even though that\nmight not even be a valid bearer. This could lead to an authentication bypass,\neither by mistake or by a malicious actor.","status":"published","published":"2022-04-27T08:00:00Z","modified":"2026-10-25T01:16:43.98284442Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"DEBIAN-CVE-2022-22576","description":"An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocols: SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only).","status":"published","published":"2022-05-26T17:15:09.077Z","modified":"2026-11-03T06:02:09.025945033Z","updated_at":"2026-11-03T06:44:05.456691Z"},{"id":"DLA-3085-1","title":"curl - security update","status":"published","published":"2022-08-29T00:00:00Z","modified":"2026-03-09T01:19:31.270449Z","updated_at":"2026-11-02T15:46:11.189256Z"},{"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":"SUSE-SU-2022:1680-1","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-2022-22576: Fixed OAUTH2 bearer bypass in connection re-use (bsc#1198614)\n","status":"published","published":"2022-05-16T09:09:56Z","modified":"2026-02-04T04:05:15.295842Z","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"}]}}