API CONNECT V12 ONPREM · CVE-2026-17344 · Infrastructure
FIX → 12.1.1.3 ✓ verified
IBM's bulletin says a service in API Connect that can be reached without authentication can be made to send requests to unintended destinations, letting a remote attacker obtain sensitive information (CWE-918, IBM CVSS 9.3). IBM fixed it in v12.1.1.3. IBM does not name the specific endpoint.
first public Nov 7, 2026 · 2 sources
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Teams running self-hosted IBM API Connect V12 on-prem, versions v12.1.0.0 to v12.1.1.2. IBM says an attacker needs no login, so exposure depends on whether the vulnerable service is reachable from the network. IBM's bulletin lists only API Connect V12 OnPrem as affected. Teams not running V12 on-prem can skip it.
Not affected if versions-outside-range
Who cares api-gateway, ibm-api-connect, self-hosted, ssrf, unauthenticated
v12.1.0.0 through v12.1.1.2 are affected per IBM; v12.1.1.3 is fixedIBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote attacker to obtain sensitive information due to server-side request forgery. A service that can be reached without authentication could be made to send requests to unintended destinations.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
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Upgrade to 12.1.1.3
Upgrade IBM API Connect V12 on-prem to v12.1.1.3 (Fix Central: https://www.ibm.com/support/pages/node/7290205).