Go/github.com/mattermost/mattermost/server/v8 CVE-2026-24458: high 7.5, EPSS 0.28%

Mattermost fails to properly handle very long passwords

Action: Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20260129164748-7201f42d955f or later.

go get github.com/mattermost/mattermost/server/v8@v8.0.0-20260129164748-7201f42d955f

Affected

Fixed versions

Sources

• osv: GHSA-m5rv-56xx-hfc6
• https://nvd.nist.gov/vuln/detail/CVE-2026-24458
• https://github.com/mattermost/mattermost/commit/7201f42d955f1bc44719b862132546626b60a180
• https://github.com/mattermost/mattermost
• https://mattermost.com/security-updates

CVE-2026-24458 · published 2026-03-16T15:30:42Z · modified 2026-03-23T18:56:03.732922Z · JSON