What is CVE-2026-33435?

CVE-2026-33435 is a high-severity vulnerability in Weblate, classified under Relative Path Traversal. CVSS score: 8.0/10. Published 2026-04-15.

How severe is CVE-2026-33435?

High severity. CVSS v3 base score is 8.0 out of 10.

RCE in Weblate

CVE-2026-33435

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.

EPSS: 0.007 (51.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weblate
Weblateorg Weblate — versions < 5.17

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2026-33435?: CVE-2026-33435 is a high-severity vulnerability in Weblate, classified under Relative Path Traversal. CVSS score: 8.0/10. Published 2026-04-15.
How severe is CVE-2026-33435?: High severity. CVSS v3 base score is 8.0 out of 10.