Observable object existence disclosure in private Weblate projects via globally scoped object lookups

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55227
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-26 21:16:38 UTC
Updated2026-08-26 21:16:38 UTC
DescriptionWeblate 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

Problem Types: CWE-203 | CWE-203 CWE-203: Observable Discrepancy

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA WeblateOrg Weblate affected < 2026.7 Not specified

References

ReferenceSourceLinkTags
github.com/WeblateOrg/weblate/commit/836bc082803d49d02f2831ec8339268eb66... [email protected] github.com
github.com/WeblateOrg/weblate/security/advisories/GHSA-2p9g-x3cv-5hh4 [email protected] github.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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