Vulnerability in Fedify
CVE-2025-68475
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…
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.005 (39.3th 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-dev Fedify — versions < 1.6.13, >= 1.7.0, < 1.7.14, >= 1.8.0, < 1.8.15
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2025-68475?
- CVE-2025-68475 is a high-severity vulnerability in Fedify, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2025-12-22.
- How severe is CVE-2025-68475?
- High severity. CVSS v3 base score is 7.5 out of 10.