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CVE-2025-68475

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CVE-2025-68475

Published: Dec 22, 2025

Modified: Dec 22, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

VendorProductVersions

fedify-dev

fedify

affected
< 1.6.13
affected
>= 1.7.0, < 1.7.14
affected
>= 1.8.0, < 1.8.15
affected
>= 1.9.0, < 1.9.2

Weaknesses (CWE)

CWE-1333

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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