{"id":"CVE-2026-32935","state":"PUBLISHED","title":"phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack","description":"phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.","publishedAt":"2026-03-20T02:48:59.778Z","updatedAt":"2026-05-08T15:19:11.716Z","severity":{"score":8.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["phpseclib phpseclib"],"affected":[{"vendor":"phpseclib","product":"phpseclib","versions":[{"version":">= 3.0.0, < 3.0.50","status":"affected"},{"version":">= 2.0.0, < 2.0.52","status":"affected"},{"version":">= 0.1.1, < 1.0.27","status":"affected"}]}],"references":["https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg","https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788"],"weaknesses":["CWE-208"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32935.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32935","state":"PUBLISHED","datePublished":"2026-03-20T02:48:59.778Z","dateUpdated":"2026-05-08T15:19:11.716Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-17T00:05:53.282Z"},"containers":{"cna":{"title":"phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack","descriptions":[{"lang":"en","value":"phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50."}],"affected":[{"vendor":"phpseclib","product":"phpseclib","versions":[{"version":">= 3.0.0, < 3.0.50","status":"affected"},{"version":">= 2.0.0, < 2.0.52","status":"affected"},{"version":">= 0.1.1, < 1.0.27","status":"affected"}]}],"references":[{"url":"https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg","name":"https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788","name":"https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-208","lang":"en","description":"CWE-208: Observable Timing Discrepancy","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-08T15:19:11.716Z"},"source":{"advisory":"GHSA-94g3-g5v7-q4jg","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-20T16:31:59.292752Z","id":"CVE-2026-32935","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-20T16:32:34.194Z"}}]}}}