Go/github.com/mattermost/mattermost-server CVE-2025-9079: high 8, EPSS 0.64%

Mattermost Path Traversal vulnerability

Action: Upgrade github.com/mattermost/mattermost-server to 9.11.18 or later.

go get github.com/mattermost/mattermost-server@v10.8.4

go get github.com/mattermost/mattermost-server@v10.5.9

go get github.com/mattermost/mattermost-server@v9.11.18

go get github.com/mattermost/mattermost-server@v10.10.2

go get github.com/mattermost/mattermost-server@v10.9.4

Affected

Fixed versions

Sources

• osv: GHSA-qx3f-6vq3-8j8m
• https://nvd.nist.gov/vuln/detail/CVE-2025-9079
• https://github.com/mattermost/mattermost/commit/047a2c64071749367fe02d2162f6103a3d31a883
• https://github.com/mattermost/mattermost/commit/439464883aa16a329c23cd6274c4cca7e88e238f
• https://github.com/mattermost/mattermost/commit/4ff68eea0a3f3777032d31a1a82f4b1fb492a1ac
• https://github.com/mattermost/mattermost/commit/96665b9b98a17534fcd515982a2eb26950581e41
• https://github.com/mattermost/mattermost/commit/a8fa77f107efe83f09a779f8e67cbecf236b0032
• https://github.com/mattermost/mattermost/commit/b38e2eccda182212a8032539658723c7d87e0b7e
• https://github.com/mattermost/mattermost
• https://mattermost.com/security-updates
• https://pkg.go.dev/vuln/GO-2025-3977

CVE-2025-9079 · published 2025-09-19T21:31:21Z · modified 2025-09-26T16:24:11Z · JSON