CVE-2025-68475
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.
- Score
- CVSS 3.1 7.5 High
- Status
- Analyzed - security-advisories@github.com
- Published
- 2025-12-22
- Last modified
- 2025-12-22
- Weaknesses
- CWE-1333
Affected products
References
- 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
- https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
