CVE-2026-19121highCWE-290

CVE-2026-19121: high-severity vulnerability in IBM API Connect

Multiple Vulnerabilities in IBM API Connect

Published

Follow this CVE+ Monitor API Connect

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.3epss 0.4%
IBM API Connect 12.1.0.0 through 12.1.1.2 could allow an authenticated attacker to gain unauthorized access due to improper authorization. Tenant context is not sufficiently verified against the authenticated user, which could allow access to another tenant's resources.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Affected products
IBM · API Connect
Related CVEs — IBM API Connect

In the same product, most dangerous first.

CVE-2025-13915CRITICALAuthentication bypass in IBM API ConnectEPSS 9.0%CVE-2019-4382MEDIUMCVE-2019-4382EPSS 7.8%CVE-2019-4202CRITICALCVE-2019-4202EPSS 4.2%CVE-2018-1778HIGHCVE-2018-1778EPSS 3.4%CVE-2018-1932MEDIUMCVE-2018-1932EPSS 3.2%CVE-2018-2011MEDIUMCVE-2018-2011EPSS 2.8%