CVE-2026-33435 Details
Description
Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can limit the scope of the vulnerability by restricting access to the project backup, as it is only accessible to users who can create projects.
A remote code execution vulnerability has been identified in Weblate, a web-based localization tool, in versions prior to 5.17. The issue arises because the project backup feature did not properly filter Git and Mercurial configuration files, potentially allowing for remote code execution under certain circumstances. This vulnerability is only accessible to users who can create projects.
Users can update to Weblate version 5.17, where this vulnerability has been patched. If an immediate update is not possible, access to the project backup can be restricted, limiting the vulnerability's scope.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/WeblateOrg/weblate/pull/18549 | [email protected] | Issue TrackingPatch |
| https://github.com/WeblateOrg/weblate/security/advisories/GHSA-558g-h753-6m33 | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-23 | Relative Path Traversal | [email protected] |
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| weblate weblate | < 5.17 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 21, 2026 | Initial Analysis | [email protected] |
| Apr 15, 2026 | New CVE Received | [email protected] |