CVE-2026-1629
Permalink Preview Information Disclosure After Permission Revocation
- State
- Published
- Severity
- 4.3 Medium
- Published
- Mar 16, 2026
- Updated
- Mar 17, 2026
- Reserved
- Jan 29, 2026
Description
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
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | Mattermost |
Weaknesses
- CWE-672 Operation on a Resource after Expiration or Release
Affected Products
| Product | Versions |
|---|---|
MattermostMattermost |
|
References
- MMSA-2026-00580vendor-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.