{"id":"CVE-2026-73636","state":"PUBLISHED","title":"Apache HTTP Server: mod_auth_digest one-time-nonce replay attack","description":"Authentication bypass by capture-replay in mod_auth_digest in Apache Software Foundation Apache HTTP Server 2.4.x on all platforms allows a man-in-the-middle (MITM) attacker to replay captured digest authentication credentials via crafted requests that trigger garbage collection of the client's shared memory entry when AuthDigestNonceLifetime is set to 0.\n\nUsers are recommended to upgrade to version 2.4.69, which fixes this issue.","publishedAt":"2026-10-01T16:17:59.618Z","updatedAt":"2026-10-01T20:09:33.050Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache HTTP Server"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache HTTP Server","defaultStatus":"unaffected","versions":[{"version":"2.4.0","status":"affected","lessThanOrEqual":"2.4.68","versionType":"semver"}]}],"references":["https://httpd.apache.org/security/vulnerabilities_24.html","http://www.openwall.com/lists/oss-security/2026/10/01/27"],"weaknesses":["CWE-294"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/73xxx/CVE-2026-73636.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73636","state":"PUBLISHED","datePublished":"2026-10-01T16:17:59.618Z","dateUpdated":"2026-10-01T20:09:33.050Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-08-13T12:47:45.798Z"},"containers":{"cna":{"title":"Apache HTTP Server: mod_auth_digest one-time-nonce replay attack","descriptions":[{"lang":"en","value":"Authentication bypass by capture-replay in mod_auth_digest in Apache Software Foundation Apache HTTP Server 2.4.x on all platforms allows a man-in-the-middle (MITM) attacker to replay captured digest authentication credentials via crafted requests that trigger garbage collection of the client's shared memory entry when AuthDigestNonceLifetime is set to 0.\n\nUsers are recommended to upgrade to version 2.4.69, which fixes this issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache HTTP Server","defaultStatus":"unaffected","versions":[{"version":"2.4.0","status":"affected","lessThanOrEqual":"2.4.68","versionType":"semver"}]}],"references":[{"url":"https://httpd.apache.org/security/vulnerabilities_24.html","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"low"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-294","description":"CWE-294 Authentication Bypass by Capture-replay","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-01T16:17:59.618Z"},"source":{"discovery":"UNKNOWN"},"timeline":[{"time":"2026-06-08T01:36:00.000Z","lang":"en","value":"Report received"},{"time":"2026-10-01T12:00:00.000Z","lang":"en","value":"fixed in 2.4.x by r1937721"},{"time":"2026-10-01T12:00:00.000Z","lang":"eng","value":"2.4.69 released"}],"credits":[{"lang":"en","value":"Hyojae Lee","type":"finder"}],"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.1,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-01T19:43:35.472082Z","id":"CVE-2026-73636","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-01T19:43:38.554Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/01/27"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-01T20:09:33.050Z"}}]}}}