What is CVE-2026-26058?

CVE-2026-26058 is a medium-severity vulnerability in Zulip, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-04-03.

How severe is CVE-2026-26058?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Path Traversal in Zulip

CVE-2026-26058

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…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.000 (0.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N.

Affected products

Zulip — versions >= 1.4.0, < 11.6

Weakness classification (CWE)

CWE-22 — Path Traversal

References

https://github.com/zulip/zulip/security/advisories/GHSA-xm5c-c6mp-3956 (x_refsource_CONFIRM)
https://github.com/zulip/zulip/commit/2df49e7750ce3fc49ef1d44b1c4ece654d4b754c (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-26058?: CVE-2026-26058 is a medium-severity vulnerability in Zulip, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-04-03.
How severe is CVE-2026-26058?: Medium severity. CVSS v3 base score is 6.1 out of 10.