CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NCVE-2017-18905
An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when used as an OAuth 2.0 service provider, Session invalidation was mishandled.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
- CWE
- CWE-613
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-g24c-fx4v-xg9w | Go | github.com/mattermost/mattermost-server | <3.9.2 | 3.9.2 |
| GHSA-g24c-fx4v-xg9w | Go | github.com/mattermost/mattermost-server | >=3.10.0 <3.10.2 | 3.10.2 |
| GO-2026-4306 | Go | github.com/mattermost/mattermost-server | <3.9.2+incompatible >=3.10.0+incompatible <3.10.2+incompatible | 3.9.2+incompatible, 3.10.2+incompatible |