Weblate Rate Limiting and Information Disclosure

A security vulnerability in Weblate (CVSS 5.3). Remediation should follow standard vulnerability management procedures. Vendor patch is available.

Weblate is a web based localization tool. Prior to version 5.12, the verification of the second factor was not subject to rate limiting. The absence of rate limiting on the second factor endpoint allows an attacker with valid credentials to automate OTP guessing. This issue has been patched in version 5.12.