CVE-2026-6935: IBM Concert unqualified command invocation

CVE-2026-6935 · Severity: high · CVSS 7.8 · Published 2026-09-23

IBM Concert, a software platform used for enterprise workflow and automation, invokes operating system commands without properly qualifying the full paths to executables. An attacker with local system access can manipulate the system's search path environment to trick the application into running malicious code instead of the intended legitimate commands, potentially gaining complete system compromise.

Technologies: IBM Concert. Vendors: IBM.

Quick answers

Is CVE-2026-6935 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-6935 being exploited in the wild.
How severe is CVE-2026-6935?
High severity, with a CVSS score of 7.8, published 23 September 2026.
Which products and versions are affected?
IBM Concert 1.0.0 through 3.0.0.
Is there a fix for CVE-2026-6935?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-6935 attacked?
It is attacked with local access.
Am I affected by CVE-2026-6935?
Check whether you run IBM Concert at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

IBM Concert 1.0.0 through 3.0.0 contains an OS command injection vulnerability via unqualified executable paths (CWE-426). The vulnerability arises from the application calling system commands without absolute paths and without restricting PATH environment variable resolution. An attacker with local system access can prepend a malicious executable to the search path, causing the application to execute arbitrary code when it invokes unqualified commands. The vulnerability was patched in version 3.0.1.1.

Affected products

  • IBM Concert 1.0.0 through 3.0.0

Timeline

  • 2026-09-23: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.