Sign in
Deutsch English Español Polski
Low

Weblate vulnerable to improper sanitization of project backups

  • Disclosed: 01.07.2024
  • Updated: 11.10.2026 15:17

Impact

Weblate didn't correctly validate filenames when restoring project backup. It may be possible to gain unauthorized access to files on the server using a crafted ZIP file.

Patches

This issue has been addressed in Weblate 5.6.2 via https://github.com/WeblateOrg/weblate/commit/b6a7eace155fa0feaf01b4ac36165a9c5e63bfdd.

Workarounds

Do not allow project creation to untrusted users.

References

Thanks to Bryan Cahill for bringing this issue to our attention.

For more information

If you have any questions or comments about this advisory:

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Python (PyPI) weblate >= 4.14, < 5.6.2 5.6.2

References

CVSS score 4.4/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-73
Platform
Python (PyPI)
Package
weblate
Disclosed
01.07.2024
Updated
11.10.2026 15:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-2041 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-jfgp-674x-6q4p - CC BY 4.0

Vulnerability history: weblate

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (36) in the archive
Total entries
36
First → latest
03.2017 08.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 6
  • Medium 22
  • Low 7

Disclosures per year

Severity:
  1. Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project
    High · 8.1 CVE-2026-55228 < 2026.7 2026.7
  2. Weblate: Privilege escalation in the user API endpoint
    High · 8.8 CVE-2026-34393 < 5.17 5.17
  3. Weblate: Arbitrary File Read via Symlink
    High · 7.7 CVE-2026-34242 < 5.17 5.17
  4. Weblate: Remote code execution during backup restoration
    High · 8.0 CVE-2026-33435 < 5.17 5.17
  5. Weblate is vulnerable to RCE through Git config file overwrite
    Critical · 9.1 CVE-2025-68398 < 5.15.1 5.15.1
  6. Weblate has an arbitrary file read via symbolic links
    High · 7.7 CVE-2025-68279 < 5.15.1 5.15.1
  7. Weblate is a web based localization tool. Prior to version 5.11, when creating a new component from an existing component that has a source code repository URL specified in settings, this URL is inclu
    High · 7.5 CVE-2025-32021 < 5.11 5.11
  8. Weblate vulnerable to improper sanitization of project backups this entry
    Low · 4.4 CVE-2024-39303 >= 4.14, < 5.6.2 5.6.2

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.