{"id":"CVE-2022-27776","aliases":["ALPINE-CVE-2022-27776","ALSA-2022:5313","BELL-CVE-2022-27776","CLSA-2022-1658855227","CLSA-2022-1658856012","CURL-CVE-2022-27776","DEBIAN-CVE-2022-27776","DLA-3085-1","DSA-5197-1","EUVD-2022-32272","GHSA-hc85-wpv5-52wh","JLSEC-2026-388","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-2022-27776","USN-5397-1","openSUSE-SU-2024:12028-1"],"status":"published","title":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak...","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port 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u.com/security/CVE-2022-27776","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-22576","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-27774","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-27775","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2022-27774","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2022-27776","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-06-01T00:00:00Z","modified":"2026-10-14T16:20:05.653Z","cwes":["CWE-522"],"updated_at":"2026-11-02T14:34:34.250357Z"}],"euvd":[{"id":"EUVD-2022-32272","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-06-01T00:00:00Z","modified":"2026-10-14T16:20:05Z","updated_at":"2026-11-02T17:27:14.304159Z"}],"ghsa":[{"id":"GHSA-hc85-wpv5-52wh","title":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak...","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-06-03T00:01:03Z","modified":"2026-10-14T18:32:30Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T15:13:27.339015Z"}],"nvd":[{"id":"CVE-2022-27776","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-06-02T14:15:43.713Z","modified":"2026-10-14T17:17:36.75Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:07:21.261605Z"}],"osv":[{"id":"ALPINE-CVE-2022-27776","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-06-02T14:15:43.713Z","modified":"2026-11-03T07:18:33.14464729Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T07:51:12.284675Z"},{"id":"BELL-CVE-2022-27776","title":"CVE-2022-27776 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:14:53.459331Z","modified":"2026-01-26T09:49:42.272289Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:17.151188Z"},{"id":"JLSEC-2026-388","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2026-05-04T13:12:06.605Z","modified":"2026-07-18T00:00:45.799990356Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"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-2022-27776","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-04-27T06:00:00Z","modified":"2026-10-17T12:55:57.890247726Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:53:53.899276Z"},{"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-2022-1658855227","title":"Fixed CVEs in curl: CVE-2022-27776, CVE-2022-27774","description":"- CVE-2022-27774: fix credential leak on redirect\n- CVE-2022-27776: fix auth/cookie leak on redirect","status":"published","published":"2022-07-26T17:07:07Z","modified":"2026-10-21T10:47:56.488202941Z","updated_at":"2026-11-02T15:43:40.176048Z"},{"id":"CLSA-2022-1658856012","title":"Fixed CVEs in curl: CVE-2022-27776, CVE-2022-27774","description":"- CVE-2022-27774: fix credential leak on redirect\n- CVE-2022-27776: fix auth/cookie leak on redirect","status":"published","published":"2022-07-26T17:20:12Z","modified":"2026-10-21T10:48:06.791982593Z","updated_at":"2026-11-02T15:43:40.176048Z"},{"id":"CURL-CVE-2022-27776","title":"Auth/cookie leak on redirect","description":"curl might leak authentication or cookie header data on HTTP redirects to the\nsame host but another port number.\n\nWhen asked to send custom headers or cookies in its HTTP requests, curl sends\nthat set of headers only to the host which name is used in the initial URL, so\nthat redirects to other hosts make curl send the data to those. However, due\nto a flawed check, curl wrongly also sends that same set of headers to the\nhosts that are identical to the first one but use a different port number or\nURL scheme. Contrary to expectation and intention.\n\nSending the same set of headers to a server on a different port number is a\nproblem for applications that pass on custom `Authorization:` or `Cookie:`\nheaders, as those headers often contain privacy sensitive information or data.\n\ncurl and libcurl have options that allow users to opt out from this check, but\nthat is not set by default.","status":"published","published":"2022-04-27T08:00:00Z","modified":"2026-10-25T01:04:47.312268913Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"CVE-2022-27776","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-06-01T00:00:00Z","modified":"2026-10-28T02:30:28.368034653Z","cwes":["CWE-522"],"updated_at":"2026-11-02T15:44:24.758293Z"},{"id":"DEBIAN-CVE-2022-27776","description":"A insufficiently protected credentials vulnerability in fixed in curl 7.83.0 might leak authentication or cookie header data on HTTP redirects to the same host but another port number.","status":"published","published":"2022-06-02T14:15:43.713Z","modified":"2026-11-03T06:02:28.878946164Z","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"}]}}