What’s Vulnerable › Vulnerabilities

CVE-2026-27602: Modoboa has an OS Command Injection

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-25 · updated 2026-06-17
• Weakness: CWE-78

Description

Modoboa is a mail hosting and management platform. Prior to version 2.7.1, `exec_cmd()` in `modoboa/lib/sysutils.py` always runs subprocess calls with `shell=True`. Since domain names flow directly into shell command strings without any sanitization, a Reseller or SuperAdmin can include shell metacharacters in a domain name to run arbitrary OS commands on the server. Version 2.7.1 patches the issue.

Affected products

• modoboa/modoboa: before 2.7.1 — fixed in 2.7.1

How to fix

Upgrade to a fixed version: modoboa/modoboa 2.7.1. Check the vendor advisory for mitigations.

References

• https://github.com/modoboa/modoboa/commit/27a7aa133d3608fe8c25ae39125d1012c333cbfa
• https://github.com/modoboa/modoboa/releases/tag/2.7.1
• https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m
• https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m

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