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CVE-2025-11776

🗓️ 15 Nov 2025 08:40:55Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 21 Views

Mattermost versions before eleven allow guest access to archived channels via search_archived.

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Refs
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Family
bdu_fstec
BDU FSTEC
Mattermost API Data Compromise
17 Dec 202500:00
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circl
Circl
CVE-2025-11776
14 Nov 202509:08
–circl
cnnvd
CNNVD
Mattermost security vulnerabilities
14 Nov 202500:00
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cve
CVE
CVE-2025-11776
14 Nov 202507:58
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cvelist
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CVE-2025-11776 Guest user can discover archived public channels
14 Nov 202507:58
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euvd
EUVD
EUVD-2025-186558
14 Nov 202509:30
–euvd
github
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Mattermost fails to properly restrict access to archived channel search API
14 Nov 202509:30
–github
nessus
Tenable Nessus
Mattermost Server < 11.0.0 Multiple Vulnerabilities (MMSA-2024-00337, MMSA-2025-00493, MMSA-2025-00540)
20 Nov 202500:00
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mend
Mend
CVE-2025-11776
14 Nov 202507:58
–mend
nvd
NVD
CVE-2025-11776
14 Nov 202508:15
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15 Nov 2025 08:40Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.14.3
EPSS0.00208
SSVC
21