CVE-2026-33435: CWE-23: Relative Path Traversal in WeblateOrg weblate
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.
AI Analysis
Technical Summary
CVE-2026-33435 is a high-severity vulnerability in Weblate (a web-based localization tool) affecting versions before 5.17. The vulnerability stems from insufficient filtering of Git and Mercurial configuration files during project backups, which can be exploited via relative path traversal (CWE-23) to achieve remote code execution (CWE-94) and possibly other impacts related to improper file upload or handling (CWE-434). The vulnerability requires high privileges (users who can create projects) and has a CVSS 3.1 score of 8.1, indicating a significant risk if exploited. The vendor fixed this issue in version 5.17.
Potential Impact
Successful exploitation can lead to remote code execution, compromising confidentiality, integrity, and availability of the affected system. The vulnerability requires a user with project creation privileges and high attack complexity, but no user interaction is needed. This can result in full system compromise if exploited.
Mitigation Recommendations
A fixed version (5.17) is available and should be applied to remediate this vulnerability. If immediate upgrade is not possible, restrict access to the project backup feature to trusted users only, as only users with project creation rights can access this functionality. This limits the attack surface until patching is performed.
CVE-2026-33435: CWE-23: Relative Path Traversal in WeblateOrg weblate
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-33435 is a high-severity vulnerability in Weblate (a web-based localization tool) affecting versions before 5.17. The vulnerability stems from insufficient filtering of Git and Mercurial configuration files during project backups, which can be exploited via relative path traversal (CWE-23) to achieve remote code execution (CWE-94) and possibly other impacts related to improper file upload or handling (CWE-434). The vulnerability requires high privileges (users who can create projects) and has a CVSS 3.1 score of 8.1, indicating a significant risk if exploited. The vendor fixed this issue in version 5.17.
Potential Impact
Successful exploitation can lead to remote code execution, compromising confidentiality, integrity, and availability of the affected system. The vulnerability requires a user with project creation privileges and high attack complexity, but no user interaction is needed. This can result in full system compromise if exploited.
Mitigation Recommendations
A fixed version (5.17) is available and should be applied to remediate this vulnerability. If immediate upgrade is not possible, restrict access to the project backup feature to trusted users only, as only users with project creation rights can access this functionality. This limits the attack surface until patching is performed.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-19T18:45:22.436Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dfd9a582d89c981f8a79d7
Added to database: 4/15/2026, 6:32:05 PM
Last enriched: 4/15/2026, 6:47:02 PM
Last updated: 4/16/2026, 6:22:23 AM
Views: 9
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