CVE-2026-40256: medium-severity vulnerability in WeblateOrg weblate
Weblate: Prefix-Based Repository Boundary Check Bypass via Symlink/Junction Path Prefix Collision
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5epss 0.3%
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:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Affected products
WeblateOrg · weblateRelated CVEs — WeblateOrg weblate
In the same product, most dangerous first.
CVE-2025-68398CRITICALWeblate has git config file overwrite vulnerability that leads to remote code executionEPSS 0.8%CVE-2022-24710MEDIUMCross-site Scripting in WeblateEPSS 0.8%CVE-2026-33435HIGHWeblate: Remote code execution during backup restorationEPSS 0.7%CVE-2026-61792HIGHWeblate path traversal allows a project administrator to read arbitrary files via App store metadata download (Incomplete Fix of CVE-2026-34242)EPSS 0.6%CVE-2026-24126MEDIUMWeblate has an argument injection in management consoleEPSS 0.5%CVE-2026-62326MEDIUMWeblate Has Uncontrolled Resource Consumption viaEPSS 0.5%