Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.012, the 67th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
- GitHub Advisory Database: GHSA-hxxj-8phw-74vw
- OSV: GHSA-hxxj-8phw-74vw
- nvd.nist.gov/vuln/detail/CVE-2017-18915
- github.com/mattermost/mattermost/commit/0968e4079e0aa670254f3fe3a7248d126e3cf877
- github.com/mattermost/mattermost/commit/c7bdce8a6641ed8d361a43b6004a351535c78423
- github.com/mattermost/mattermost/commit/fb325cc339eb8d8efb60dbadc48fd38897201c6f
- github.com/mattermost/mattermost
- mattermost.com/security-updates