CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2025-68475
High (7.5) in fedify fedify. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in @fedify/fedify 1.6.13, 1.7.14, 1.8.15.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1333
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedify:fedify
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rchf-xwx2-hm93 | npm | @fedify/fedify | <1.6.13 | 1.6.13 |
| GHSA-rchf-xwx2-hm93 | npm | @fedify/fedify | >=1.7.0 <1.7.14 | 1.7.14 |
| GHSA-rchf-xwx2-hm93 | npm | @fedify/fedify | >=1.8.0 <1.8.15 | 1.8.15 |
| GHSA-rchf-xwx2-hm93 | npm | @fedify/fedify | >=1.9.0 <1.9.2 | 1.9.2 |
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