# CVE-2026-3626: IBM Concert information disclosure via error message

Source: https://junglewise.ai/threats/cve-2026-3626-ibm-concert-1-0-0-through-3-0-0-could-allow-a-remote-attacker-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-23. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-3626 · Severity: medium · CVSS 5.3 · Published 2026-09-23

IBM Concert is a software platform used for enterprise automation and integration. A vulnerability allows remote attackers to see detailed error messages in the browser that expose sensitive technical information, which could be used to plan further attacks against the system.

Technologies: [IBM Concert](https://junglewise.ai/threats/technologies/concert). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-3626 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-3626 being exploited in the wild.

**How severe is CVE-2026-3626?** Medium severity, with a CVSS score of 5.3, 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-2026-3626?** 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-2026-3626 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-3626?** 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 versions 1.0.0 through 3.0.0 return detailed technical error messages to clients without proper sanitization, allowing information disclosure. An unauthenticated network attacker can trigger error conditions and extract system internals, configuration details, or other sensitive data from verbose error pages. This information may facilitate reconnaissance for follow-up attacks.

## Affected products

- IBM Concert 1.0.0 through 3.0.0

## Timeline

- 2026-09-23: disclosed

## References

- [https://www.ibm.com/support/pages/node/7288830](https://www.ibm.com/support/pages/node/7288830)

## Related threats

- [IBM Concert command injection vulnerability](https://junglewise.ai/threats/cve-2026-6715-ibm-concert-1-0-through-3-0-1-1-allows-an-attacker-can-supply)
- [IBM Concert arbitrary command execution in dependencies](https://junglewise.ai/threats/cve-2026-15266-ibm-concert-1-0-through-3-0-1-1-contains-components-that-allow)
- [IBM Concert weak cryptographic algorithms allow decryption](https://junglewise.ai/threats/cve-2026-6719-ibm-concert-1-0-through-3-0-0-uses-weaker-than-expected)
- [IBM Concert cross-site scripting in Web UI](https://junglewise.ai/threats/cve-2026-4413-ibm-concert-1-0-through-3-0-0-is-vulnerable-to-cross-site)
- [IBM Concert local web cache accessible to other users](https://junglewise.ai/threats/cve-2026-4405-ibm-concert-1-0-through-3-0-0-allows-web-page-cache-to-be-stored)