CVE-2026-77507: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in WeblateOrg weblate
Description
Weblate versions prior to 2026.8 have a vulnerability where object-scoped RSS feeds do not enforce permission checks, allowing unauthorized users to access change-history metadata from private projects and restricted components. This metadata includes project and component identities, contributor usernames and full names, action types, timestamps, and translation or unit links, but not the translated-string content. The issue affects installations that allow anonymous access and use private or restricted projects. The vulnerability is fixed in version 2026.8.
CVSS v3.1
Score 5.3medium
Affected software
WeblateOrg
weblate
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Weblate, a web-based localization platform, has an information exposure vulnerability (CVE-2026-77507) in versions before 2026.8. The object-scoped RSS feeds fail to apply the same permission checks as other parts of the application, enabling unauthorized users to retrieve sensitive change-history metadata from private projects and restricted components without authentication on installations permitting anonymous access. The exposed data includes project and component identifiers, contributor usernames and full names, action types, timestamps, and links related to translations or units. The flaw does not expose the actual translated-string content. This vulnerability is resolved in Weblate version 2026.8.
Potential Impact
Unauthorized actors can access sensitive metadata about private projects and restricted components, including contributor identities and change history details, potentially leading to privacy breaches or information leakage. However, the actual translation content is not exposed. The vulnerability has a CVSS score of 5.3 (medium severity) and does not affect integrity or availability.
Mitigation Recommendations
Upgrade Weblate installations to version 2026.8 or later, where this vulnerability is fixed. Until then, restrict anonymous access to installations or avoid using private projects or restricted components if possible. No other official remediation or temporary fixes are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-20T20:23:02.506Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8f55a2acd9273b496333d4
Added to database: 08/26/2026, 21:07:46 UTC
Last enriched: 09/10/2026, 09:53:59 UTC
Last updated: 10/10/2026, 18:48:22 UTC
Views: 97
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