CVE-2026-55227 MEDIUM

CVE-2026-55227: Observable object existence disclosure in private Weblate projects via globally scoped object lookups

Vendor Weblateorg
Product weblate
Weakness CWE-203
Published August 26, 2026
Last update August 27, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

Weblate is a web-based localization tool. In versions prior to 2026.7, several endpoints look up objects in a globally scoped manner rather than restricting the lookup to projects the user can access, so they return HTTP 403 (Forbidden) instead of 404 (Not Found) when a user requests an object they are not authorized to see. This difference lets unauthorized users infer whether a given object exists in a private Weblate project. The issue has been fixed in version 2026.7.

Key dates

02Disclosure timeline

August 26, 2026 CVE published
August 27, 2026 Record updated