{"id":"CVE-2021-22923","aliases":["ALPINE-CVE-2021-22923","AZL-6362","BELL-CVE-2021-22923","CURL-CVE-2021-22923","DEBIAN-CVE-2021-22923","EUVD-2021-10052","GHSA-89qw-6g6w-269q","JLSEC-2026-1336","MGASA-2021-0384","OESA-2022-1506","RHSA-2021:3582","RHSA-2021:3903","RLSA-2021:3582","SUSE-SU-2021:14768-1","SUSE-SU-2021:2425-1","SUSE-SU-2021:2439-1","SUSE-SU-2021:2440-1","SUSE-SU-2021:2462-1","openSUSE-SU-2021:1088-1","openSUSE-SU-2021:2439-1","openSUSE-SU-2024:12116-1"],"status":"published","title":"When curl is instructed to get content using the metalink feature, and a user name and password...","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02002,"percentile":0.81039,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-319","CWE-522"],"published":"2021-07-21T08:00:00Z","modified":"2026-10-25T01:05:31Z","fixes":[{"ecosystem":"Alpine:v3.11","package":"curl","fixed_in":["7.79.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"curl","fixed_in":["7.78.0-r0"],"sources":["osv"]},{"ecosystem":"Azure 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curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-08-05T00:00:00Z","modified":"2026-10-14T10:42:55.517Z","cwes":["CWE-319"],"updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-10052","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-08-05T00:00:00Z","modified":"2026-10-14T10:42:55Z","updated_at":"2026-11-02T17:27:16.356399Z"}],"ghsa":[{"id":"GHSA-89qw-6g6w-269q","title":"When curl is instructed to get content using the metalink feature, and a user name and password...","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2022-05-24T19:10:07Z","modified":"2026-10-14T12:32:27Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-319","CWE-522"],"updated_at":"2026-11-02T15:13:24.812204Z"}],"nvd":[{"id":"CVE-2021-22923","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-08-05T21:15:11.293Z","modified":"2026-10-14T11:16:53.617Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-319","CWE-522"],"updated_at":"2026-11-02T14:06:56.562207Z"}],"osv":[{"id":"ALPINE-CVE-2021-22923","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-08-05T21:15:11.293Z","modified":"2026-10-23T17:17:56.152899726Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:27:48.646074Z"},{"id":"AZL-6362","title":"CVE-2021-22923 affecting package curl for versions less than 7.76.0-5","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-08-05T21:15:11Z","modified":"2026-04-21T04:32:11.167286Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:07.805289Z"},{"id":"BELL-CVE-2021-22923","title":"CVE-2021-22923 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:14:27.144181Z","modified":"2026-01-26T09:48:37.830344Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:15.925958Z"},{"id":"CVE-2021-22923","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-08-05T21:15:11.293Z","modified":"2026-10-24T10:30:50.411124309Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.367807Z"},{"id":"DEBIAN-CVE-2021-22923","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-08-05T21:15:11.293Z","modified":"2026-10-15T09:47:41.078460287Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:34.637046Z"},{"id":"JLSEC-2026-1336","description":"When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.","status":"published","published":"2026-08-17T13:15:13.4Z","modified":"2026-08-17T13:30:03.11403232Z","cvss":[{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:47:18.159338Z"},{"id":"OESA-2022-1506","title":"curl security update","description":"Curl is used in command lines or scripts to transfer data.\r\n\r\nSecurity Fix(es):\r\n\r\nWhen curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user\u0026apos;s expectations and intentions and without telling the user it happened.(CVE-2021-22923)\r\n\r\nWhen curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.(CVE-2021-22922)","status":"published","published":"2022-01-28T11:04:47Z","modified":"2026-08-18T01:16:19.300427909Z","cvss":[{"version":"3.1","score":5.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:39.528805Z"},{"id":"RHSA-2021:3582","title":"Red Hat Security Advisory: curl security update","status":"published","published":"2024-09-16T06:18:35Z","modified":"2026-10-15T10:02:04Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2021:3903","title":"Red Hat Security Advisory: curl security update","status":"published","published":"2024-09-16T06:18:43Z","modified":"2026-10-15T10:02:05Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RLSA-2021:3582","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: Content not matching hash in Metalink is not being discarded (CVE-2021-22922)\n\n* curl: Metalink download sends credentials (CVE-2021-22923)\n\n* curl: Bad connection reuse due to flawed path name checks (CVE-2021-22924)\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":"2021-09-21T07:12:18Z","modified":"2026-02-04T09:30:10.749485Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:23.969672Z"},{"id":"CURL-CVE-2021-22923","title":"Metalink download sends credentials","description":"When curl is instructed to get content using the Metalink feature, and a user\nname and password are used to download the Metalink XML file, those same\ncredentials are then subsequently passed on to each of the servers from which\ncurl downloads or tries to download the contents from. Often contrary to the\nuser's expectations and intentions and without telling the user it happened.","status":"published","published":"2021-07-21T08:00:00Z","modified":"2026-10-25T01:05:31.346992978Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"MGASA-2021-0384","title":"Updated curl packages fix security vulnerabilities","description":"Wrong content via metalink not discarded (CVE-2021-22922).\n\nMetalink download sends credentials (CVE-2021-22923).\n\nBad connection reuse due to flawed path name checks (CVE-2021-22924).\n\nTELNET stack contents disclosure again (CVE-2021-22925).\n","status":"published","published":"2021-07-27T20:21:53Z","modified":"2026-04-16T04:44:00.050335464Z","updated_at":"2026-11-02T15:49:41.509337Z"},{"id":"openSUSE-SU-2021:1088-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2021-22925: TELNET stack contents disclosure again. (bsc#1188220)\n- CVE-2021-22924: Bad connection reuse due to flawed path name checks. (bsc#1188219)\n- CVE-2021-22923: Insufficiently Protected Credentials. (bsc#1188218)\n- CVE-2021-22922: Wrong content via metalink not discarded. (bsc#1188217)\n\nThis update was imported from the SUSE:SLE-15-SP2:Update update project.","status":"published","published":"2021-07-24T16:05:42Z","modified":"2026-02-04T03:16:59.343405Z","updated_at":"2026-11-02T16:58:31.879684Z"},{"id":"openSUSE-SU-2021:2439-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2021-22925: TELNET stack contents disclosure again. (bsc#1188220)\n- CVE-2021-22924: Bad connection reuse due to flawed path name checks. (bsc#1188219)\n- CVE-2021-22923: Insufficiently Protected Credentials. (bsc#1188218)\n- CVE-2021-22922: Wrong content via metalink not discarded. (bsc#1188217)\n","status":"published","published":"2021-07-21T11:47:07Z","modified":"2025-05-07T18:12:31.281466Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"openSUSE-SU-2024:12116-1","title":"tensorflow-lite-2.9.1-1.1 on GA media","description":"These are all security issues fixed in the tensorflow-lite-2.9.1-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:04:19.609756Z","updated_at":"2026-11-02T16:58:35.485255Z"},{"id":"SUSE-SU-2021:14768-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2021-22925: TELNET stack contents disclosure again. (bsc#1188220)\n- CVE-2021-22924: Bad connection reuse due to flawed path name checks. (bsc#1188219)\n- CVE-2021-22923: Insufficiently Protected Credentials. (bsc#1188218)\n- CVE-2021-22922: Wrong content via metalink not discarded. (bsc#1188217)\n","status":"published","published":"2021-07-21T11:45:42Z","modified":"2026-02-04T04:28:31.483488Z","updated_at":"2026-11-02T15:53:49.138643Z"},{"id":"SUSE-SU-2021:2425-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2021-22925: TELNET stack contents disclosure again. (bsc#1188220)\n- CVE-2021-22924: Bad connection reuse due to flawed path name checks. (bsc#1188219)\n- CVE-2021-22923: Insufficiently Protected Credentials. (bsc#1188218)\n- CVE-2021-22922: Wrong content via metalink not discarded. (bsc#1188217)\n","status":"published","published":"2021-07-21T09:26:20Z","modified":"2026-02-04T03:17:38.996645Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2439-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2021-22925: TELNET stack contents disclosure again. (bsc#1188220)\n- CVE-2021-22924: Bad connection reuse due to flawed path name checks. (bsc#1188219)\n- CVE-2021-22923: Insufficiently Protected Credentials. (bsc#1188218)\n- CVE-2021-22922: Wrong content via metalink not discarded. (bsc#1188217)\n","status":"published","published":"2021-07-21T11:47:05Z","modified":"2026-02-04T03:24:43.058528Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2440-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2021-22925: TELNET stack contents disclosure again. (bsc#1188220)\n- CVE-2021-22924: Bad connection reuse due to flawed path name checks. (bsc#1188219)\n- CVE-2021-22923: Insufficiently Protected Credentials. (bsc#1188218)\n- CVE-2021-22922: Wrong content via metalink not discarded. (bsc#1188217)\n","status":"published","published":"2021-07-21T11:48:57Z","modified":"2026-02-04T03:41:49.466305Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2462-1","title":"Security update for curl","description":"This update for curl fixes the following issues:\n\n- CVE-2021-22925: TELNET stack contents disclosure again. (bsc#1188220)\n- CVE-2021-22924: Bad connection reuse due to flawed path name checks. (bsc#1188219)\n- CVE-2021-22923: Insufficiently Protected Credentials. (bsc#1188218)\n- CVE-2021-22922: Wrong content via metalink not discarded. (bsc#1188217)\n","status":"published","published":"2021-07-23T09:23:31Z","modified":"2026-02-04T04:33:01.619157Z","updated_at":"2026-11-02T15:53:49.605187Z"}]}}