CVE-2026-6718 Multiple Vulnerabilities in IBM Concert Software

Medium 6.2 Published 23 Sep 2026 Updated 24 Sep 2026

Unauthorized attackers can modify application files in IBM Concert due to improper access control, requiring a vendor patch.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-6718?

CVE-2026-6718 is a medium-severity missing authorization vulnerability in Ibm Concert, published on 23 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM Concert 1.0.0 through 3.0.0 is vulnerable to improper access control which allows unauthorized modification of application files.

Weakness: CWE-276

Which versions are affected by CVE-2026-6718?

It affects 1 product.

Products include Ibm Concert.

How do I fix CVE-2026-6718?

No fix has been published for CVE-2026-6718 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-6718 being exploited?

There is no known exploitation of CVE-2026-6718 in the wild and no public exploit code.

All Ibm Concert vulnerabilities

Sources

Also known as GHSA-j9v6-hchx-c83p.