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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
fedify-dev fedify
< 1.6.13affected>= 1.7.0, < 1.7.14affected>= 1.8.0, < 1.8.15affected>= 1.9.0, < 1.9.2affected
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 ↗