Quick answers
- Is CVE-2026-17437 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-17437 being exploited in the wild.
- How severe is CVE-2026-17437?
- Medium severity, with a CVSS score of 5.5, published 8 November 2026.
- Which products and versions are affected?
- IBM App Connect Enterprise 13.0.1.0 through 13.0.8.2, and 12.0.1.0 through 12.0.12.29.
- Is there a fix for CVE-2026-17437?
- Yes: fixed in App Connect Enterprise 13.0.9.0 (for 13.x branch), 12.0.12.30 (for 12.x branch). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-17437 attacked?
- It is attacked with local access, in a hosted service.
- Am I affected by CVE-2026-17437?
- Check whether you run IBM App Connect Enterprise 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: App Connect Enterprise 13.0.9.0 (for 13.x branch), 12.0.12.30 (for 12.x branch)
Technical details
The vulnerability is a path traversal flaw (CWE-22) in archive extraction logic that fails to properly validate directory traversal sequences in pathnames. A local attacker with no privileges but requiring user interaction can craft a malicious archive to write files outside the intended extraction directory. The attack requires the user to extract an attacker-controlled archive, and the attacker gains arbitrary file write capability under the victim's account context.
Affected products
- IBM App Connect Enterprise 13.0.1.0 through 13.0.8.2, and 12.0.1.0 through 12.0.12.29
Timeline
- 2026-10-19: disclosed
- 2026-11-08: advisory