CVE-2026-18256
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)
Private team metadata disclosure via the team search API
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to properly restrict private teams from public team search results, which allows an authenticated user without permission to list private teams to disclose the ID, name, and display name of private teams via a modified team search request. Mattermost Advisory ID: MMSA-2026-00748
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) |
|---|---|---|---|---|---|
| 11.10.0 | affected | semver | Unavailable | 11.10.0 | None listed |
| 11.7.0 | affected | semver | Unavailable | 11.7.9 | None listed |
| 11.9.0 | affected | semver | Unavailable | 11.9.1 | None listed |
| 11.8.0 | affected | semver | Unavailable | 11.8.5 | None listed |
| 11.11.0 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.10.1 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.7.10 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.9.2 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.8.6 | unaffected | Unavailable | Unavailable | Unavailable | None listed |