CVE-2026-24050Zulip is an open-source team collaboration tool.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
zulip zulip_server zulip:zulip_server | from 5.0 before 11.5 | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.