CVE-2025-68475

HighCVSS 7.5/10Last modified Sep 28, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1333

Affected software

Vendor	Product	Versions
fedify-dev	fedify	< 1.6.13; >= 1.7.0, < 1.7.14; >= 1.8.0, < 1.8.15; >= 1.9.0, < 1.9.2

References

https://github.com/fedify-dev/fedify/commit/2bdcb24d7d6d5886e0214ed504b63a6dc5488779Patch
https://github.com/fedify-dev/fedify/commit/bf2f0783634efed2663d1b187dc55461ee1f987aPatch
https://github.com/fedify-dev/fedify/releases/tag/1.6.13Product, Release Notes
https://github.com/fedify-dev/fedify/releases/tag/1.7.14Product, Release Notes
https://github.com/fedify-dev/fedify/releases/tag/1.8.15Product, Release Notes
https://github.com/fedify-dev/fedify/releases/tag/1.9.2Product, Release Notes
https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93Exploit, Mitigation, Vendor Advisory

Timeline

Published: Dec 22, 2025
Last modified: Sep 28, 2026
NVD status: Analyzed

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