---
id: "CVE-2026-17359"
page: "https://infrastack.ai/live/CVE-2026-17359"
kind: "vulnerability"
aliases: ["CVE-2026-17359"]
title: "IBM API Connect: authenticated remote code execution via generated code"
severity: "critical"
cvss: 9.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "IBM API Connect", "fixed": ["10.0.8.13"], "affected": "10.0.8.0 - 10.0.8.12", "ecosystem": "vendor"}, {"name": "IBM API Connect V12 OnPrem", "fixed": ["12.1.1.3"], "affected": "12.1.0.0 - 12.1.1.2", "ecosystem": "vendor"}]
ecosystems: []
tags: ["api-gateway", "ibm-api-connect", "infrastructure", "self-hosted"]
not_affected_if: ["unaffected-version"]
published_at: "2026-11-07T05:18:48+00:00"
first_seen_at: "2026-11-07T05:46:05+00:00"
updated_at: "2026-11-07T05:53:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17359", "first_seen_at": "2026-11-07T05:46:05+00:00"}, {"source": "analyst", "url": "https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39", "first_seen_at": "2026-11-07T05:53:02+00:00", "cites": ["https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39", "https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-41"]}]
exploit_sources: []
---

# IBM API Connect: authenticated remote code execution via generated code

Link for people: https://infrastack.ai/live/CVE-2026-17359 (this .md is for agents)

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 let a remote authenticated attacker supply a value that changes code the product generates. That lets the attacker execute arbitrary code on the server.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:IBM API Connect affected 10.0.8.0 - 10.0.8.12 fixed 10.0.8.13
- vendor:IBM API Connect V12 OnPrem affected 12.1.0.0 - 12.1.1.2 fixed 12.1.1.3

## How to check

Check your API Connect version. Affected: V10.0.8.0 - V10.0.8.12 and V12 OnPrem v12.1.0.0 - v12.1.1.2. Fixed: 10.0.8.13 and v12.1.1.3.

## Fix

Upgrade IBM API Connect 10.0.8.x to 10.0.8.13, or 12.1.x on-prem to v12.1.1.3 (Fix Central; IBM lists no workaround).

## Timeline

- 2026-11-07T05:46:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-17359
- 2026-11-07T05:53:02+00:00 analyst https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39 — IBM bulletins (10.0.8.13 and v12.1.1.3) list CVE-2026-17359, CWE-94, CVSS 9.9, no workarounds. No exploitation or PoC found in Feedly; X not searched.

## Documents

- [advisory] IBM Security Bulletin: Multiple Vulnerabilities in IBM API Connect (v12.1.1.3) https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39
- [advisory] IBM Security Bulletin: Multiple Vulnerabilities in IBM API Connect (10.0.8.13) https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-41

## From the sources

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 execute arbitrary code due to improper control of generation of code. A user-supplied value can influence code that the product generates, which could lead to code execution.

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_