Quick answers
- Is CVE-2026-75590 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-75590 being exploited in the wild.
- How severe is CVE-2026-75590?
- High severity, with a CVSS score of 7.2, 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-2026-75590?
- 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-2026-75590 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-75590?
- 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
Server-side request forgery (SSRF) in IBM API Connect 12.1.0.0 through 12.1.1.2 allows unauthenticated remote attackers to bypass internal address restrictions and force the server to contact internal services, with responses partially returned to the attacker. The vulnerability exists in the request routing and filtering logic that fails to properly enforce destination restrictions.
Affected products
- IBM API Connect 12.1.0.0 through 12.1.1.2
Timeline
- 2026-11-07: disclosed