GO-2026-4496 — Vulnetix

GO-2026-4496 PUBLISHED

Mattermost doesn't validate user permissions when creating Jira issues from Mattermost posts in github.com/mattermost/mattermost-server

Affected Products

Vendor	Product	Versions
github.com	mattermost/mattermost-server	11.2.0+incompatible, 11.1.0+incompatible, 10.11.0+incompatible

Timeline

Feb 23, 2026 CVE Published
Feb 23, 2026 CVE Updated
May 1, 2026 Security Advisory

References

https://github.com/advisories/GHSA-9pj7-jh2r-87g8 advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-22892 advisory
https://mattermost.com/security-updates url

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