CVE-2025-68475

7.5 HIGH
Published: December 22, 2025 Modified: March 17, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/fedify-dev/fedify/releases/tag/1.6.13
Source: security-advisories@github.com
Product Release Notes
https://github.com/fedify-dev/fedify/releases/tag/1.7.14
Source: security-advisories@github.com
Product Release Notes
https://github.com/fedify-dev/fedify/releases/tag/1.8.15
Source: security-advisories@github.com
Product Release Notes
https://github.com/fedify-dev/fedify/releases/tag/1.9.2
Source: security-advisories@github.com
Product Release Notes
https://github.com/fedify-dev/fedify/security/advisories/GHSA-rchf-xwx2-hm93
Source: security-advisories@github.com
Exploit Mitigation Vendor Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.2%
40th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

fedify