CVE-2025-53940 Information

Description

Quiet is an alternative to team chat apps like Slack Discord and Element that does not require trusting a central server or running one’s own. In versions 6.1.0-alpha.4 and below Quiet’s API for backend/frontend communication was using an insecure not constant-time comparison function for token verification. This allowed for a potential timing attack where an attacker would try different token values and observe tiny differences in the response time (wrong characters fail faster) to guess the whole token one character at a time. This is fixed in version 6.0.1.

Reference

https://github.com/TryQuiet/quiet/issues/2820#issue-3021080269 https://github.com/TryQuiet/quiet/pull/2928 https://github.com/TryQuiet/quiet/security/advisories/GHSA-gpw8-w78h-xj67

Related CNNVD

CNNVD-202507-3125 (Published: 2025-07-24)