CVE-2025-55074
published 2025-11-18CVE-2025-55074: Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when…
PriorityP415low3.5CVSS 3.1
AVNACLPRLUIRSUCLINAN
EPSS
0.17%
6.2th percentile
Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | mattermost_mattermost-server | >= 10.11.0 < 10.11.4 | 10.11.4 |
| github.com | mattermost_mattermost-server | >= 10.11.0+incompatible < 10.11.4+incompatible | 10.11.4+incompatible |
| github.com | mattermost_mattermost-server | >= 10.5.0 < 10.5.12 | 10.5.12 |
| github.com | mattermost_mattermost-server | >= 10.5.0+incompatible < 10.5.12+incompatible | 10.5.12+incompatible |
| github.com | mattermost_mattermost_server_v8 | >= 0 < 8.0.0-20250905150616-ba86dfc5876b6 | 8.0.0-20250905150616-ba86dfc5876b6 |
| mattermost | mattermost | 10.11.0 – 10.11.3 | — |
| mattermost | mattermost | 10.5.0 – 10.5.11 | — |
| mattermost | mattermost_server | >= 10.11.0 < 10.11.4 | 10.11.4 |
| mattermost | mattermost_server | >= 10.5.0 < 10.5.12 | 10.5.12 |
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OSV
Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server
osv·2025-11-25
CVE-2025-55074 Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server
Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server
Mattermost allows other users to determine when users had read channels via channel member objects in github.com/mattermost/mattermost-server.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.0.0-20250905150616-ba86dfc5876b6.
GHSA
Mattermost allows other users to determine when users had read channels via channel member objects
ghsa·2025-11-18
CVE-2025-55074 [LOW] CWE-276 Mattermost allows other users to determine when users had read channels via channel member objects
Mattermost allows other users to determine when users had read channels via channel member objects
Mattermost versions 10.11.x <= 10.11.3, and 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects.
OSV
Mattermost allows other users to determine when users had read channels via channel member objects
osv·2025-11-18
CVE-2025-55074 [LOW] Mattermost allows other users to determine when users had read channels via channel member objects
Mattermost allows other users to determine when users had read channels via channel member objects
Mattermost versions 10.11.x <= 10.11.3, and 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-11-18
Published