CVE-2026-94588 Command injection in pmg-api
Authenticated attackers can execute arbitrary commands via argument injection in the package changelog retrieval feature of Proxmox Mail Gateway.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-94588?
CVE-2026-94588 is a medium-severity command injection vulnerability in Proxmox pmg-api, published on 21 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In Proxmox pmg-api, an argument injection vulnerability exists in the package changelog retrieval functionality. This is caused by improper handling of user-supplied input passed to the underlying apt-get command when fetching package changelogs. It requires authentication but can be exploited in a CSRF-style attack.
Weakness: CWE-88
Which versions are affected by CVE-2026-94588?
How do I fix CVE-2026-94588?
No fix has been published for CVE-2026-94588 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-94588 being exploited?
There is no known exploitation of CVE-2026-94588 in the wild and no public exploit code.
Sources
Also known as GHSA-mpx3-wp2c-xm4m.