{"id":"CVE-2025-68475","state":"PUBLISHED","title":"Fedify has ReDoS Vulnerability in HTML Parsing Regex","description":"Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2, a Regular Expression Denial of Service (ReDoS) vulnerability exists in Fedify's document loader. The HTML parsing regex at packages/fedify/src/runtime/docloader.ts:259 contains nested quantifiers that cause catastrophic backtracking when processing maliciously crafted HTML responses. This issue has been patched in versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2.","publishedAt":"2025-12-22T21:31:20.314Z","updatedAt":"2025-12-22T21:54:45.635Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["fedify-dev fedify"],"affected":[{"vendor":"fedify-dev","product":"fedify","versions":[{"version":"< 1.6.13","status":"affected"},{"version":">= 1.7.0, < 1.7.14","status":"affected"},{"version":">= 1.8.0, < 1.8.15","status":"affected"},{"version":">= 1.9.0, < 1.9.2","status":"affected"}]}],"references":["https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93","https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779","https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a","https://github.com/fedify-dev/fedify/releases/tag/1.6.13","https://github.com/fedify-dev/fedify/releases/tag/1.7.14","https://github.com/fedify-dev/fedify/releases/tag/1.8.15","https://github.com/fedify-dev/fedify/releases/tag/1.9.2"],"weaknesses":["CWE-1333"],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68475.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68475","state":"PUBLISHED","datePublished":"2025-12-22T21:31:20.314Z","dateUpdated":"2025-12-22T21:54:45.635Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-12-18T13:52:15.491Z"},"containers":{"cna":{"title":"Fedify has ReDoS Vulnerability in HTML Parsing Regex","descriptions":[{"lang":"en","value":"Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2, a Regular Expression Denial of Service (ReDoS) vulnerability exists in Fedify's document loader. The HTML parsing regex at packages/fedify/src/runtime/docloader.ts:259 contains nested quantifiers that cause catastrophic backtracking when processing maliciously crafted HTML responses. This issue has been patched in versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2."}],"affected":[{"vendor":"fedify-dev","product":"fedify","versions":[{"version":"< 1.6.13","status":"affected"},{"version":">= 1.7.0, < 1.7.14","status":"affected"},{"version":">= 1.8.0, < 1.8.15","status":"affected"},{"version":">= 1.9.0, < 1.9.2","status":"affected"}]}],"references":[{"url":"https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93","name":"https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779","name":"https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779","tags":["x_refsource_MISC"]},{"url":"https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a","name":"https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987a","tags":["x_refsource_MISC"]},{"url":"https://github.com/fedify-dev/fedify/releases/tag/1.6.13","name":"https://github.com/fedify-dev/fedify/releases/tag/1.6.13","tags":["x_refsource_MISC"]},{"url":"https://github.com/fedify-dev/fedify/releases/tag/1.7.14","name":"https://github.com/fedify-dev/fedify/releases/tag/1.7.14","tags":["x_refsource_MISC"]},{"url":"https://github.com/fedify-dev/fedify/releases/tag/1.8.15","name":"https://github.com/fedify-dev/fedify/releases/tag/1.8.15","tags":["x_refsource_MISC"]},{"url":"https://github.com/fedify-dev/fedify/releases/tag/1.9.2","name":"https://github.com/fedify-dev/fedify/releases/tag/1.9.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","lang":"en","description":"CWE-1333: Inefficient Regular Expression Complexity","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-12-22T21:31:20.314Z"},"source":{"advisory":"GHSA-rchf-xwx2-hm93","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-12-22T21:54:29.525857Z","id":"CVE-2025-68475","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-12-22T21:54:45.635Z"}}]}}}