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

Weakness classification (CWE)

References

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.