CVE-2026-6264 Critical Security fix for the Talend JobServer and Talend Runtime
Unauthenticated attackers can execute arbitrary code remotely via the JMX monitoring port in Talend JobServer and Runtime.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6264?
CVE-2026-6264 is a critical code injection vulnerability in Talend JobServer, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A critical vulnerability in the Talend JobServer and Talend Runtime allows unauthenticated remote code execution via the JMX monitoring port. The attack vector is the JMX monitoring port of the Talend JobServer. The vulnerability can be mitigated for the Talend JobServer by requiring TLS client authentication for the monitoring port; however, the patch must be applied for full mitigation. For Talend ESB Runtime, the vulnerability can be mitigated by disabling the JobServer JMX monitoring port, which is disabled by default from the R2024-07-RT patch.
Which versions are affected by CVE-2026-6264?
How do I fix CVE-2026-6264?
No fix has been published for CVE-2026-6264 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-6264 being exploited?
There is no known exploitation of CVE-2026-6264 in the wild and no public exploit code.
Sources
Also known as GHSA-2m83-cjg7-5x73.