CVE-2026-72530 TrueConf Server Code Injection

Exploited in the wild Critical 9.5 Published 19 Aug 2026 Updated 21 Aug 2026

Remote attackers can execute arbitrary code on the host system by sending crafted scripts to the TrueConf Server.

Exploited in the wild: Since 20 Aug 2026
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-72530?

CVE-2026-72530 is a critical code injection vulnerability in TrueConf Server, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A remote unauthorized attacker with network access via port 4307/TCP to the TrueConf server versions 5.3.X to 5.3.9, 5.4.X to 5.4.9, 5.5.X to 5.5.5, and earlier could use a specially crafted script to break out of the isolated environment and execute arbitrary code on the host system.

Weakness: CWE-94

Which versions are affected by CVE-2026-72530?

It affects 1 product.

Products include Trueconf Trueconf Server.

How do I fix CVE-2026-72530?

No fix has been published for CVE-2026-72530 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Sep 2026.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-72530 being exploited?

Yes. Attackers have exploited CVE-2026-72530 in the wild since at least 20 Aug 2026.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-f8q9-f337-2p3r.