CVE-2026-28735
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)
GitHub OAuth Scope Validation
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to validate the OAuth token scope on the callback which allows an authenticated Mattermost user to gain access to private repositories via modifying the scope parameter in the GitHub authorization URL.. Mattermost Advisory ID: MMSA-2026-00628
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) |
|---|---|---|---|---|---|
| 11.6.0 | affected | semver | Unavailable | 11.6.0 | None listed |
| 11.5.0 | affected | semver | Unavailable | 11.5.3 | None listed |
| 11.4.0 | affected | semver | Unavailable | 11.4.4 | None listed |
| 10.11.0 | affected | semver | Unavailable | 10.11.14 | None listed |
| 11.7.0 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.6.1 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.5.4 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.4.5 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 10.11.15 | unaffected | Unavailable | Unavailable | Unavailable | None listed |