{"id":"CVE-2026-9641","state":"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.","publishedAt":"2026-06-12T14:57:30.534Z","updatedAt":"2026-06-14T14:46:24.576Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"CISA-ADP"},"assigner":"CPANSec","products":["ARODLAND Crypt::PBKDF2"],"affected":[{"vendor":"ARODLAND","product":"Crypt::PBKDF2","packageName":"Crypt-PBKDF2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.261630","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","repo":"https://github.com/arodland/Crypt-PBKDF2"}],"references":["https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2","https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes","http://www.openwall.com/lists/oss-security/2026/06/12/5","http://www.openwall.com/lists/oss-security/2026/06/13/1","http://www.openwall.com/lists/oss-security/2026/06/14/1","http://www.openwall.com/lists/oss-security/2026/06/14/2","http://www.openwall.com/lists/oss-security/2026/06/14/3"],"weaknesses":["CWE-916"],"ingestedAt":"2026-10-29T20:13:52.441Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/9xxx/CVE-2026-9641.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9641","state":"PUBLISHED","datePublished":"2026-06-12T14:57:30.534Z","dateUpdated":"2026-06-14T14:46:24.576Z","assignerShortName":"CPANSec","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateReserved":"2026-05-26T18:44:37.132Z"},"containers":{"cna":{"title":"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"ARODLAND","product":"Crypt::PBKDF2","packageName":"Crypt-PBKDF2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.261630","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","repo":"https://github.com/arodland/Crypt-PBKDF2"}],"references":[{"url":"https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2","tags":["technical-description"]},{"url":"https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes","tags":["release-notes"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-916","description":"CWE-916 Use of Password Hash With Insufficient Computational Effort","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CPANSec","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateUpdated":"2026-06-12T14:57:30.534Z"},"solutions":[{"lang":"en","value":"Upgrade to version 0.261630 or later."}],"source":{"discovery":"UNKNOWN"},"workarounds":[{"lang":"en","value":"Change the default algorithm to something stronger, such as \"HMACSHA2\", and the output_len accordingly (32 for SHA256).\n\nThe number of iterations should also be increased (600,000 for SHA256, for example)."}],"x_generator":{"engine":"cpansec-cna-tool 0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-12T17:46:14.634769Z","id":"CVE-2026-9641","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-12T17:46:30.101Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/06/12/5"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/13/1"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/14/1"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/14/2"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/14/3"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-06-14T14:46:24.576Z"}}]}}}