What’s Vulnerable › Vulnerabilities

CVE-2026-86008: Mailu domain managers can take over higher-privileged accounts

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-16 · updated 2026-10-16
• Weakness: CWE-269

Description

Mailu is a mail server distributed as a set of Docker images. Prior to 8577c929b4ade04d3cd4210cf036601abd793556, a domain manager targeting an administrative account or another domain manager with greater privileges can reset passwords or obtain tokens for that account. This authorization failure allows a domain manager to take over a higher-privileged account and exercise that account's permissions. This vulnerability is addressed by commit 8577c929b4ade04d3cd4210cf036601abd793556.

Affected products

• Mailu: before 8577c929b4ade04d3cd4210cf036601abd793556

References

• https://github.com/Mailu/Mailu/commit/8577c929b4ade04d3cd4210cf036601abd793556
• https://github.com/Mailu/Mailu/issues/2685
• https://github.com/Mailu/Mailu/pull/4050
• https://github.com/Mailu/Mailu/security/advisories/GHSA-9pv5-rm76-3qwj

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