PYSEC-2026-2041

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/weblate/PYSEC-2026-2041.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-2041
Aliases
Published
2026-07-07T14:34:36.062688Z
Modified
2026-07-07T17:47:55.601289014Z
Severity
  • 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
Weblate vulnerable to improper sanitization of project backups
Details

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: * Open a topic in discussions * Email us at care@weblate.org

References

Affected packages

PyPI / weblate

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.14
Fixed
5.6.2

Affected versions

4.*
4.14
4.14.1
4.14.2
4.15
4.15.1
4.15.2
4.16
4.16.1
4.16.2
4.16.3
4.16.4
4.17
4.18
4.18.1
4.18.2
5.*
5.0
5.0.1
5.0.2
5.1
5.1.1
5.2
5.2.1
5.3
5.3.1
5.4
5.4.1
5.4.2
5.4.3
5.5
5.5.2
5.5.3
5.5.4
5.5.5
5.6
5.6.1

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/weblate/PYSEC-2026-2041.yaml"