CVE-2026-26058: Zulip: Path Traversal in Import
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Zulipto a version that resolves this vulnerability.Fixed in 11.6
Event History
Frequently Asked Questions
What is the severity of CVE-2026-26058?
CVE-2026-26058 is classified as a path traversal vulnerability affecting Zulip versions from 1.4.0 to before 11.6.
How do I fix CVE-2026-26058?
To fix CVE-2026-26058, update Zulip to version 11.6 or later where the vulnerability has been addressed.
What are the potential impacts of CVE-2026-26058?
Exploitation of CVE-2026-26058 could allow an attacker to read arbitrary files from the server filesystem.
Which versions of Zulip are affected by CVE-2026-26058?
CVE-2026-26058 affects Zulip versions from 1.4.0 up to and including 11.5.
Can CVE-2026-26058 be exploited remotely?
Yes, CVE-2026-26058 can potentially be exploited remotely through crafted export tarballs.