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CVE-2025-68475

nvd nist
Published: Dec 22, 2025Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: security-advisories@github.com (Secondary)

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 (4)

Products: Fedify: Fedify
Fedify
1 product
Fedify
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Fedify
Fedify
Before 1.6.13
Fedify
From 1.7.0 to 1.7.14
Fedify
From 1.8.1 to 1.8.15
Fedify
From 1.9.0 to 1.9.2

Related CWEs

CWE-1333
Inefficient Regular Expression Complexity
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

References (7)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
ExploitMitigationVendor Advisory

Timeline

No history available yet.