CVE-2026-6334Published
OAuth authorization code client binding not enforced during token redemption in Mattermost
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-6334 · Microsoft / collected KEV context
cve-program · CVE-2026-6334
euvd · EUVD-2026-30743
nvd · CVE-2026-6334
osv · GHSA-jp3f-x449-4q75
- https://nvd.nist.gov/vuln/detail/CVE-2026-6334
- https://github.com/mattermost/mattermost/commit/e9ae890a013bb57989fcbdb548d8b7b86b240237
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
osv · GO-2026-5474
Related operational evidence
Explicit CVE identifiersNo related operational record is retained in the current change model.