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CVE-2026-86008

7.2 · HIGH

Mailu is a mail server distributed as a set of Docker images.

Published Oct 16, 2026CWE-269EPSS 0.31%

Overview

CVE-2026-86008 is a high-severity vulnerability. It was published on October 16, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Mailu/Mailu/commit/8577c929b4ade04d3cd4210cf036601abd793556GitHubgithub.com/Mailu/Mailu/issues/2685GitHubgithub.com/Mailu/Mailu/pull/4050GitHubgithub.com/Mailu/Mailu/security/advisories/GHSA-9pv5-rm76-3qwj

How CyberStrike helps

Frequently asked questions

What is CVE-2026-86008?

CVE-2026-86008 is a high-severity vulnerability. It was published on October 16, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-86008?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-86008?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-86008?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-86008 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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