{"id":"CVE-2026-9641","aliases":["DEBIAN-CVE-2026-9641","EUVD-2026-36470","GHSA-v9r4-9w2c-2xcp","UBUNTU-CVE-2026-9641","openSUSE-SU-2026:11034-1"],"status":"published","title":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations","description":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations.\n\nThe default algorithm is HMAC-SHA1, which should only be used for legacy systems.\n\nThese versions default to using 1000 iterations.\n\nDepending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-08","score":0.00226,"percentile":0.13317,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-916"],"published":"2026-06-12T14:57:30Z","modified":"2026-10-28T02:31:09Z","fixes":[{"ecosystem":"Debian:12","package":"libcrypt-pbkdf2-perl","fixed_in":["0.261630-1~deb13u1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libcrypt-pbkdf2-perl","fixed_in":["0.261630-1~deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libcrypt-pbkdf2-perl","fixed_in":["0.261630-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1~deb13u1~deb12u1"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"Debian:13","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1~deb13u1"}]}],"versions":["0.161520-2","0.261630-1~deb13u1~deb12u1"]},{"source":"osv","ecosystem":"Debian:14","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1"}]}],"versions":["0.161520-2","0.261630-1~deb13u1","0.261630-1~deb13u1~deb12u1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.150900-1","0.160410-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2","0.261630-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libcrypt-pbkdf2-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.161520-2"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"perl-Crypt-PBKDF2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.261630-1.1"}]}],"bundled":3}],"products":[{"vendor":"arodland","product":"crypt::pbkdf2"}],"references":[{"url":"https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2","tags":["technical-description","article","report"]},{"url":"https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes","tags":["release-notes","advisory","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/12/5","tags":["web","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/13/1","tags":["web","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/14/1","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/14/2","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/14/3","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9641","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-v9r4-9w2c-2xcp"},{"url":"https://cpan.org/modules","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9641.json","tags":["advisory"]},{"url":"https://github.com/arodland/Crypt-PBKDF2","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-9641","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-9641","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-9641","tags":["report"]},{"url":"https://lists.security.metacpan.org/cve-announce/msg/40933040/","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-20240","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-9638","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-9641","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-9641","title":"Crypt::PBKDF2 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iterations.\n\nDepending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.","status":"published","published":"2026-06-12T14:57:30Z","modified":"2026-06-14T14:46:24Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:42.85316Z"}],"ghsa":[{"id":"GHSA-v9r4-9w2c-2xcp","title":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of...","description":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations.\n\nThe default algorithm is HMAC-SHA1, which should only be used for legacy systems.\n\nThese versions default to using 1000 iterations.\n\nDepending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.","status":"published","published":"2026-06-12T18:31:59Z","modified":"2026-06-14T15:30:24Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-916"],"updated_at":"2026-11-02T15:08:45.788743Z"}],"nvd":[{"id":"CVE-2026-9641","description":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations.\n\nThe default algorithm is HMAC-SHA1, which should only be used for legacy systems.\n\nThese versions default to using 1000 iterations.\n\nDepending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.","status":"published","published":"2026-06-12T16:16:35.047Z","modified":"2026-10-26T11:10:00.157Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-916"],"updated_at":"2026-11-02T14:12:23.846948Z"}],"osv":[{"id":"CVE-2026-9641","title":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations","description":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations.\n\nThe default algorithm is HMAC-SHA1, which should only be used for legacy systems.\n\nThese versions default to using 1000 iterations.\n\nDepending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.","status":"published","published":"2026-06-12T14:57:30.534Z","modified":"2026-10-28T02:31:09.975580015Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-916"],"updated_at":"2026-11-02T15:45:21.262447Z"},{"id":"DEBIAN-CVE-2026-9641","description":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations.  The default algorithm is HMAC-SHA1, which should only be used for legacy systems.  These versions default to using 1000 iterations.  Depending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.","status":"published","published":"2026-06-12T16:16:35.047Z","modified":"2026-10-27T09:47:41.023790826Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:46:07.324252Z"},{"id":"UBUNTU-CVE-2026-9641","description":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versions default to using 1000 iterations. Depending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.","status":"published","published":"2026-06-12T16:16:00Z","modified":"2026-10-17T13:01:19.594560678Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:57:44.071534Z"},{"id":"openSUSE-SU-2026:11034-1","title":"perl-Crypt-PBKDF2-0.261630-1.1 on GA media","description":"These are all security issues fixed in the perl-Crypt-PBKDF2-0.261630-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-06-15T00:00:00Z","modified":"2026-06-16T10:30:08.275473467Z","updated_at":"2026-11-02T16:58:38.95195Z"}]}}