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.

• CWE-1333

• 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

Published

Dec 22, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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