CVE-2026-3637
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Mattermost fails to enforce create_post permission when editing posts
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to check the create_post channel permission during post edit operations which allows an authenticated attacker with revoked posting privileges to modify their existing posts via direct API requests to the post update and patch endpoints.. Mattermost Advisory ID: MMSA-2026-00627
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Mattermost
- Vendor
- Mattermost
- Product
- Mattermost
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 11.5.0 | affected | semver | Unavailable | 11.5.1 | None listed |
| 10.11.0 | affected | semver | Unavailable | 10.11.13 | None listed |
| 11.4.0 | affected | semver | Unavailable | 11.4.3 | None listed |
| 11.6.0 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.5.2 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 10.11.14 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.4.4 | unaffected | Unavailable | Unavailable | Unavailable | None listed |