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Mattermost doesn't properly validate channel membership at the time of data retrieval
| Reporter | Title | Published | Views | Family All 113 |
|---|---|---|---|---|
 | CVE-2026-20796 | 13 Feb 202610:30 | – | attackerkb |
 | CVE-2026-20796 | 14 Feb 202618:10 | – | circl |
 | Mattermost 安全漏洞 | 13 Feb 202600:00 | – | cnnvd |
 | CVE-2026-20796 | 13 Feb 202610:30 | – | cve |
 | CVE-2026-20796 Time-of-check time-of-use vulnerability in common teams API | 13 Feb 202610:30 | – | cvelist |
 | Mattermost Server 10.11.x <= 10.11.9 / 11.0.x <= 11.2.x Improper Access Control (MMSA-2025-00549) | 18 Feb 202600:00 | – | nessus |
 | CVE-2026-20796 | 13 Feb 202611:16 | – | nvd |
 | GHSA-2XF7-HMF6-P64J Mattermost doesn't properly validate channel membership at the time of data retrieval | 13 Feb 202612:31 | – | osv |
| GO-2026-4495 Mattermost doesn't properly validate channel membership at the time of data retrieval in github.com/mattermost/mattermost-server | 23 Feb 202618:23 | – | osv |
| SUSE-SU-2026:0757-1 Security update for govulncheck-vulndb | 3 Mar 202611:34 | – | osv |
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13 Feb 2026 20:55Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.13.1
EPSS0.00011
SSVC