CVE-2026-40256

MEDIUM EPSS 24.2%
Published Apr 15, 20262mo ago · Modified Jun 17, 20262w ago
5.0 CVSS 3.1
Medium
Find Similar
Published Apr 15, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
5.0
Exploitability
3.1
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
24.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 1

VendorProductVersionRange
weblateweblate* <5.17

References 2

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

Remediation

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