Resource exhaustion in @Fedify Fedify
CVE-2026-34148
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to 1.9.6, 1.10.5, 2.0.8, and 2.1.1, @fedify/fedify follows HTTP redirects recursively in its remote document loader and authenticated document…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.001 (24.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- @Fedify Fedify — versions < 1.9.6, >= 1.10.0, < 1.10.5, >= 2.0.0, < 2.0.8
- @Fedify Vocab-runtime — versions < 2.0.8, >= 2.1.0, < 2.1.1
Weakness classification (CWE)
References
- https://github.com/fedify-dev/fedify/security/advisories/GHSA-gm9m-gwc4-hwgp (x_refsource_CONFIRM)
- https://github.com/fedify-dev/fedify/releases/tag/1.10.5 (x_refsource_MISC)
- https://github.com/fedify-dev/fedify/releases/tag/1.9.6 (x_refsource_MISC)
- https://github.com/fedify-dev/fedify/releases/tag/2.0.8 (x_refsource_MISC)
- https://github.com/fedify-dev/fedify/releases/tag/2.1.1 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-34148?
- CVE-2026-34148 is a high-severity vulnerability in @Fedify Fedify, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-04-06.
- How severe is CVE-2026-34148?
- High severity. CVSS v3 base score is 7.5 out of 10.