CVE-2026-21889

Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.

• https://github.com/WeblateOrg/weblate/commit/a6eb5fd0299780eca286be8ff187dc2d10feec47

  security-advisories@github.com
• https://github.com/WeblateOrg/weblate/pull/17516

  security-advisories@github.com
• https://github.com/WeblateOrg/weblate/security/advisories/GHSA-3g2f-4rjg-9385

  security-advisories@github.com