Unauthorized Bot Login Using Credentials
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials.
02 / AFFECTED SOFTWARE
Affected packages
45 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials.
Mattermost vulnerable to Incorrect Implementation of Authentication Algorithm in github.com/mattermost/mattermost-server
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials.
05 / REFERENCES
Further evidence
- https://github.com/mattermost/mattermost
- https://github.com/mattermost/mattermost/commit/124547a9ef424431e1e6cf09bdba6c1099d415de
- https://github.com/mattermost/mattermost/commit/40fd60714bd055e00c16301ba6dc0fddfc44e15e
- https://github.com/mattermost/mattermost/commit/88523ceed8a7547c4a4203a30e7c3a8097346280
- https://github.com/mattermost/mattermost/commit/bcd7a4c2bd856dbb40fcda227b363fa5f6f548a7
- https://github.com/mattermost/mattermost/commit/fd356b62b4dd3318d2c8019d2310abdd6ce24c8c
- https://mattermost.com/security-updates
- https://nvd.nist.gov/vuln/detail/CVE-2025-2475
- https://pkg.go.dev/vuln/GO-2025-3610
- https://github.com/advisories/GHSA-6rqh-8465-2xcw
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/2xxx/CVE-2025-2475.json