CVE-2026-24050

Name: CVE-2026-24050
Creator: NVD / NIST
Published: 2026-02-06T19:16:08.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.1/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2026-24050 is a low-severity vulnerability rated 1.1/10 on the CVSS scale. Zulip is an open-source team collaboration tool. From 5.0 to before 11.5, some administrative actions on the user profile were susceptible to stored XSS in group names or channel names. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

Zulip is an open-source team collaboration tool. From 5.0 to before 11.5, some administrative actions on the user profile were susceptible to stored XSS in group names or channel names. Exploiting these vulnerabilities required the user explicitly interacting with the problematic object. This vulnerability is fixed in 11.5.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS 4.0

1.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.23%

13.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Zulip	Zulip Server	>= 5.0, < 11.5

References

https://github.com/zulip/zulip/commit/e6093d9e4788f4d82236d856c5ed7b16767886a7Patch
https://github.com/zulip/zulip/releases/tag/11.5Release Notes
https://github.com/zulip/zulip/security/advisories/GHSA-56qv-8823-6fq9Vendor Advisory
https://zulip.readthedocs.io/en/latest/overview/changelog.html#zulip-server-11-5Release Notes

Timeline

Published: Feb 6, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-24050?

How severe is CVE-2026-24050?

CVE-2026-24050 has a CVSS score of 1.1/10 (LOW severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2026-24050?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-24050?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST