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PT-2026-27990

🗓️ 25 Mar 2026 00:00:00Reported by Positive TechnologiesType 
ptsecurity
 ptsecurity
🔗 dbugs.ptsecurity.com👁 6 Views

CSRF flaw in /api/v4/access policies/{policy id}/activate could let admins be tricked into changing policy active status in Mattermost.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-27659
25 Mar 202616:33
attackerkb
Circl
CVE-2026-27659
25 Mar 202618:08
circl
CNNVD
Mattermost 安全漏洞
25 Mar 202600:00
cnnvd
CVE
CVE-2026-27659
25 Mar 202616:33
cve
Cvelist
CVE-2026-27659 CSRF vulnerability in UpdateAccessControlPolicyActiveStatus endpoint
25 Mar 202616:33
cvelist
EUVD
EUVD-2026-15806
25 Mar 202618:31
euvd
Github Security Blog
Mattermost doesn't properly validate CSRF tokens
25 Mar 202618:31
github
NVD
CVE-2026-27659
25 Mar 202617:16
nvd
OSV
GHSA-RMHW-C3XR-M3XX Mattermost doesn't properly validate CSRF tokens
25 Mar 202618:31
osv
RedhatCVE
CVE-2026-27659
26 Mar 202617:00
redhatcve
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25 Mar 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.6
EPSS0.00123
6