Quick answers
- Is CVE-2026-17239 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-17239 being exploited in the wild.
- How severe is CVE-2026-17239?
- Critical severity, with a CVSS score of 9.9, published 7 November 2026.
- Which products and versions are affected?
- IBM API Connect 12.1.0.0 through 12.1.1.2.
- Is there a fix for CVE-2026-17239?
- Yes: fixed in 12.1.1.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-17239 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-17239?
- Check whether you run IBM API Connect 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.
How to fix
- Fixed in: 12.1.1.3
Technical details
A path traversal vulnerability in IBM API Connect versions 12.1.0.0 through 12.1.1.2 allows an authenticated attacker to execute arbitrary code. The vulnerability permits navigation outside intended directory restrictions, enabling code execution on the affected server. Authentication is required to exploit this flaw.
Affected products
- IBM API Connect 12.1.0.0 through 12.1.1.2
Timeline
- 2026-11-07: disclosed