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Vulnerability IntelligenceCVE-2026-1629

CVE-2026-1629

MEDIUM4.3

Permalink Preview Information Disclosure After Permission Revocation

Published Mar 16, 2026

Modified 1 months ago

Details

Mattermost versions 10.11.x <= 10.11.10 Fail to invalidate cached permalink preview data when a user loses channel access which allows the user to continue viewing private channel content via previously cached permalink previews until cache reset or relogin.. Mattermost Advisory ID: MMSA-2026-00580

References

https://mattermost.com/security-updates

https://www.cve.org/CVERecord?id=CVE-2026-1629

CVSS Analysis

CVSS v3.1

4.3

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

LowC:L

Integrity

NoneI:N

Availability

NoneA:N

4.3/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedMar 16, 2026

ModifiedMar 17, 2026

CVE-2026-1629 | Mondoo Vulnerability Intelligence