CVE-2026-26058
MediumCVSS 6.1Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
Zulip before version 11.6 has a path traversal vulnerability in ./manage.py import that allows reading arbitrary files from the server filesystem. A crafted export tarball causes file copying to the uploads directory during import.
Risk Assessment
An attacker can read any files accessible by the zulip user, including configurations and sensitive data.
Recommendation
Update Zulip to version 11.6.
Original NVD description (English source)
Zulip is an open-source team collaboration tool. From version 1.4.0 to before version 11.6, ./manage.py import reads arbitrary files from the server filesystem via path traversal in uploads/records.json. A crafted export tarball causes the server to copy any file the zulip user can read into the uploads directory during import. This issue has been patched in version 11.6.