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7.4 High

CVE-2026-17337 Multiple Vulnerabilities in IBM API Connect

Description

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to bypass authentication due to improper certificate validation. A certificate check is not performed reliably in all cases, which could allow a connection to be accepted without proper authentication.

CVSS 3.1 detail

Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
High
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected products and versions

Product Affected versions Fixed in
API Connect 12.1 12.1.0.0 → 12.1.1.2 No fix stated

Other CVEs of API Connect

The 286 CVEs of API Connect →
CVE-2026-18535 IBM API Connect Denial of Service 9.6 Critical CVE-2026-19124 Multiple Vulnerabilities in IBM API Connect 6.8 Medium CVE-2026-17393 Multiple Vulnerabilities in IBM API Connect 5.1 Medium CVE-2026-17386 Multiple Vulnerabilities in IBM API Connect 8.1 High
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