CVE-2026-27602
Modoboa has an OS Command Injection
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.
INFO
Published Date :
March 25, 2026, 7:16 p.m.
Last Modified :
March 26, 2026, 4:30 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Modoboa to version 2.7.1.
- Apply vendor patch for security.
- Sanitize all domain name inputs.
- Avoid shell=True in subprocess calls.
Public PoC/Exploit Available at Github
CVE-2026-27602 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-27602.
| URL | Resource |
|---|---|
| https://github.com/modoboa/modoboa/commit/27a7aa133d3608fe8c25ae39125d1012c333cbfa | Patch |
| https://github.com/modoboa/modoboa/releases/tag/2.7.1 | Product Release Notes |
| https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m | Exploit Vendor Advisory |
| https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-27602 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-27602
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-27602 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-27602 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:modoboa:modoboa:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.1 Added Reference Type GitHub, Inc.: https://github.com/modoboa/modoboa/commit/27a7aa133d3608fe8c25ae39125d1012c333cbfa Types: Patch Added Reference Type GitHub, Inc.: https://github.com/modoboa/modoboa/releases/tag/2.7.1 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 26, 2026
Action Type Old Value New Value Added Reference https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m -
New CVE Received by [email protected]
Mar. 25, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://github.com/modoboa/modoboa/commit/27a7aa133d3608fe8c25ae39125d1012c333cbfa Added Reference https://github.com/modoboa/modoboa/releases/tag/2.7.1 Added Reference https://github.com/modoboa/modoboa/security/advisories/GHSA-wwv8-cqpr-vx3m