---
id: "CVE-2026-17356"
page: "https://infrastack.ai/live/CVE-2026-17356"
kind: "vulnerability"
aliases: ["CVE-2026-17356"]
title: "IBM API Connect: hard-coded cryptographic key exposes sensitive information locally"
severity: "high"
cvss: 8.7
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "API Connect V12 OnPrem", "fixed": ["12.1.1.3"], "affected": ">= 12.1.0.0, <= 12.1.1.2", "ecosystem": "vendor"}]
ecosystems: []
tags: ["ibm-api-connect", "infrastructure", "self-hosted"]
not_affected_if: ["version-outside-range"]
published_at: "2026-11-07T05:18:47+00:00"
first_seen_at: "2026-11-07T05:46:05+00:00"
updated_at: "2026-11-07T06:13:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17356", "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": "2026-11-07T06:13:05+00:00", "cites": ["https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39"]}]
exploit_sources: []
---

# IBM API Connect: hard-coded cryptographic key exposes sensitive information locally

Link for people: https://infrastack.ai/live/CVE-2026-17356 (this .md is for agents)

IBM API Connect versions 12.1.0.0 through 12.1.1.2 contain a hard-coded cryptographic key. A local attacker who can read the software can use that key to obtain sensitive information.

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

## Affected

- vendor:API Connect V12 OnPrem affected >= 12.1.0.0, <= 12.1.1.2 fixed 12.1.1.3

## How to check

Find your installed API Connect V12 OnPrem version. Affected: v12.1.0.0 through v12.1.1.2. Fixed: v12.1.1.3. The 10.0.8 line is not listed for this CVE in IBM's 10.0.8 bulletin.

## Fix

Upgrade IBM API Connect V12 OnPrem to v12.1.1.3 (Fix Central: https://www.ibm.com/support/pages/node/7290205). IBM lists no workaround.

## Timeline

- 2026-11-07T05:46:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-17356
- 2026-11-07T06:13:05+00:00 analyst https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39 — Read IBM bulletin ...-api-connect-39: CVE-2026-17356 (CWE-321, CVSS 8.7) listed, V12 OnPrem v12.1.0.0-v12.1.1.2, fixed v12.1.1.3, no workarounds. Bulletin says 'local attacker' but vector is AV:N/AC:H; discrepancy unexplained. 10.0.8 bulletin (-41) does not list this CVE. No exploitation or PoC checked beyond bulletin; social search skipped.

## 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

## From the sources

IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a local attacker to obtain sensitive information due to the use of a hard-coded cryptographic key.

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