Path Traversal Vulnerability in Zulip Collaboration Tool
CVE-2026-26058

6.1MEDIUM

Key Information:

Vendor

Zulip

Status
Zulip
Vendor
CVE Published:
3 April 2026

What is CVE-2026-26058?

Zulip, an open-source collaboration tool, is vulnerable to a path traversal issue that affects versions 1.4.0 through 11.5. This vulnerability allows an attacker to read arbitrary files from the server's filesystem. By crafting a malicious export tarball, an attacker can exploit the ./manage.py import function, leading to unauthorized read access to files that the zulip user has permissions for. The flaw has been patched in version 11.6, and users are advised to upgrade to mitigate risks associated with this vulnerability.

Affected Version(s)

zulip >= 1.4.0, < 11.6

References

https://github.com/zulip/zulip/security/advisories/GHSA-x...
x_refsource_CONFIRM
https://github.com/zulip/zulip/commit/2df49e7750ce3fc49ef...
x_refsource_MISC

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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