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CVE-2025-68475

CVE-2025-68475 · Fedify has ReDoS Vulnerability in HTML Parsing Regex

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 0.6% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • fedify

    Versions
    • < 1.6.13: Affected
    • >= 1.7.0, < 1.7.14: Affected
    • >= 1.8.0, < 1.8.15: Affected
    • >= 1.9.0, < 1.9.2: Affected

    No fix published

  • @fedify/fedify npm

    Affected ranges
    • SEMVER: < 1.6.13

    Update to 1.6.13

  • @fedify/fedify npm

    Affected ranges
    • SEMVER: ≥ 1.7.0, < 1.7.14

    Update to 1.7.14

  • @fedify/fedify npm

    Affected ranges
    • SEMVER: ≥ 1.8.0, < 1.8.15

    Update to 1.8.15

  • @fedify/fedify npm

    Affected ranges
    • SEMVER: ≥ 1.9.0, < 1.9.2

    Update to 1.9.2

Original sources

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