---
id: "CVE-2026-17117"
page: "https://infrastack.ai/live/CVE-2026-17117"
kind: "vulnerability"
aliases: ["CVE-2026-17117"]
title: "IBM API Connect: logged-in user can set system-only fields and run code (fixed in 10.0.8.13 and 12.1.1.3)"
severity: "critical"
cvss: 9.9
epss: null
exploited: false
status: "open"
category: "vendor"
products: [{"name": "api-connect", "fixed": ["10.0.8.13"], "affected": ">= 10.0.8.0, <= 10.0.8.12", "ecosystem": "vendor"}, {"name": "api-connect-v12-onprem", "fixed": ["12.1.1.3"], "affected": ">= 12.1.0.0, <= 12.1.1.2", "ecosystem": "vendor"}]
ecosystems: []
tags: ["api-gateway", "auth-required", "ibm-api-connect", "self-hosted", "vendor"]
not_affected_if: ["outside-affected-versions", "unaffected-version", "unauthenticated-only-access"]
published_at: "2026-11-07T05:18:25+00:00"
first_seen_at: "2026-11-07T05:45:58+00:00"
updated_at: "2026-11-07T06:00:18+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17117", "first_seen_at": "2026-11-07T05:45:58+00:00"}, {"source": "analyst", "url": "https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39", "first_seen_at": "2026-11-07T06:00:18+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: logged-in user can set system-only fields and run code (fixed in 10.0.8.13 and 12.1.1.3)

Link for people: https://infrastack.ai/live/CVE-2026-17117 (this .md is for agents)

IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 let a logged-in user change object fields that only the system should control. Setting those fields can lead to arbitrary code execution on the server.

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

## Affected

- vendor:api-connect affected >= 10.0.8.0, <= 10.0.8.12 fixed 10.0.8.13
- vendor: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 per IBM: 10.0.8.0 - 10.0.8.12 and API Connect V12 OnPrem v12.1.0.0 - v12.1.1.2. Fixed: 10.0.8.13 and v12.1.1.3. No special setting is required beyond a valid account.

## Fix

Upgrade to 10.0.8.13 (10.0.8.x) or v12.1.1.3 (V12 OnPrem 12.1.x), via IBM Fix Central. IBM lists no workarounds or mitigations.

## Timeline

- 2026-11-07T05:45:58+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-17117
- 2026-11-07T06:00:18+00:00 analyst https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39 — Read IBM bulletins -41 (10.0.8.x, fix 10.0.8.13) and -39 (V12 OnPrem, fix v12.1.1.3); both list CVE-2026-17117, workarounds None. No exploitation/PoC evidence checked beyond bulletins; no social search.

## 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 improperly controlled modification of object attributes. A user could set a field that should only be controlled by the system, which could lead to code execution.

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