CVE-2026-40256

Weblate is a web based localization tool. In versions prior to 5.17, repository-boundary validation relies on string prefix checks on resolved absolute paths. In multiple code paths, the check uses startswith against the repository root path. This is not path-segment aware and can be bypassed when the external path shares the same string prefix as the repository path (for example, repo and repo_outside). This issue has been fixed in version 5.17.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/WeblateOrg/weblate/commit/e30dbcb33ae78e754ecef192d54f996b89cb4e15	Patch
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-ffgh-3jrf-8wvh	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:weblate:weblate:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-15 19:16

Updated : 2026-06-17 10:44

NVD link : CVE-2026-40256

Mitre link : CVE-2026-40256

CVE.ORG link : CVE-2026-40256

JSON object : View

Products Affected

weblate

weblate

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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