Vulnerability · Published Nov 7, 2026 · Assigned by ibm

CVE-2026-18836Multiple Vulnerabilities in IBM API Connect

Critical 9.3

In plain English

A critical-severity server-side request forgery in API Connect from IBM. There are no confirmed reports of exploitation so far.

Severity (CVSS 3.1)9.3Critical
Exploit odds (30 days)–no EPSS score yet
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote attacker to obtain sensitive information due to server-side request forgery. The affected component can be made to send requests to unintended destinations and return the response to the attacker.

Affected products (as reported)

VendorProductVersions
IBM API Connect 12.1.0.0 – through 12.1.1.210.0.8.0 – through 10.0.8.12

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N

References