Quick answers
- Is CVE-2026-17403 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-17403 being exploited in the wild.
- How severe is CVE-2026-17403?
- Critical severity, with a CVSS score of 9, published 7 November 2026.
- Which products and versions are affected?
- IBM API Connect 10.0.8.0 through 10.0.8.12, 12.1.0.0 through 12.1.1.2.
- Is there a fix for CVE-2026-17403?
- 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-2026-17403 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-17403?
- 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.
Technical details
The vulnerability stems from hard-coded credentials embedded in IBM API Connect versions 10.0.8.0–10.0.8.12 and 12.1.0.0–12.1.1.2. This allows unauthenticated remote attackers to access administrative functions over the network. An attacker can gain complete administrative control without any authentication or user interaction, giving them full system compromise including data access and modification rights.
Affected products
- IBM API Connect 10.0.8.0 through 10.0.8.12, 12.1.0.0 through 12.1.1.2
Timeline
- 2026-11-07: disclosed