ReDoS Vulnerability in Fedify TypeScript Library for Federated Server Apps
CVE-2025-68475
7.5HIGH
What is CVE-2025-68475?
A Regular Expression Denial of Service (ReDoS) vulnerability exists in the Fedify TypeScript library's document loader. This vulnerability arises due to the presence of nested quantifiers in the HTML parsing regex, resulting in catastrophic backtracking when processing specially crafted HTML responses. Attackers could exploit this vulnerability to create scenarios where the server becomes unresponsive, impacting service availability. The issue has been addressed in versions 1.6.13, 1.7.14, 1.8.15, and 1.9.2, which users are encouraged to upgrade to.
Affected Version(s)
fedify < 1.6.13 < 1.6.13
fedify >= 1.7.0, < 1.7.14 < 1.7.0, 1.7.14
fedify >= 1.8.0, < 1.8.15 < 1.8.0, 1.8.15