CVE-2025-55074: Channel member objects leak read status
Vendor fix available · Affected: Mattermost · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 7% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Mattermost · Mattermostfrom 10.11.0 up to and including 10.11.3; from 10.5.0 up to and including 10.5.11
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Mattermost
- Published
- November 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-55074 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.