API CONNECT · CVE-2026-17299 · Infrastructure
FIX → 10.0.8.13 · 12.1.1.3 ✓ verified
IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 resolve external references in submitted API definitions without enough restriction. An authenticated attacker can make the server read arbitrary local files and send requests to internal systems, with the retrieved content returned to them.
first public Nov 7, 2026 · 2 sources
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Teams that run IBM API Connect themselves, V10 10.0.8.0-10.0.8.12 or V12 OnPrem 12.1.0.0-12.1.1.2. An attacker needs a valid login that can submit API definitions. The server then resolves external references in them, which can read local files and reach internal systems, and the result is returned to the attacker. IBM lists no workaround, so upgrade. Teams on 10.0.8.13 or 12.1.1.3 or later can skip it.
Not affected if unaffected-version
Who cares api-gateway, ibm-api-connect, self-hosted
10.0.8.0 through 10.0.8.12, and on V12 OnPrem at 12.1.0.0 through 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 authenticated attacker to perform arbitrary file reads and server-side request forgery due to unrestricted resolution of external references. Externally referenced content in submitted definitions is not sufficiently restricted when processed, and the retrieved content could be returned to the attacker.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
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12.1.1.2Upgrade to 10.0.8.13 · 12.1.1.3
10.0.8.13, or V12 OnPrem to 12.1.1.3