---
id: "CVE-2026-17240"
page: "https://infrastack.ai/live/CVE-2026-17240"
kind: "vulnerability"
aliases: ["CVE-2026-17240"]
title: "IBM API Connect: improper authentication lets remote attackers reach protected resources"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["api-gateway", "ibm-api-connect", "self-hosted", "vendor"]
not_affected_if: ["versions-outside-range"]
published_at: "2026-11-07T05:18:32+00:00"
first_seen_at: "2026-11-07T05:46:01+00:00"
updated_at: "2026-11-07T05:52:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17240", "first_seen_at": "2026-11-07T05:46:01+00:00"}]
exploit_sources: []
---

# IBM API Connect: improper authentication lets remote attackers reach protected resources

Link for people: https://infrastack.ai/live/CVE-2026-17240 (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 apply authentication checks inconsistently. A remote attacker can reach protected resources without valid credentials.

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

## How to check

- Check the installed API Connect version against the affected ranges 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2

## Timeline

- 2026-11-07T05:46:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-17240

## 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 attacker to bypass security restrictions due to improper authentication. Authentication checks are not applied consistently, which could allow protected resources to be reached without valid credentials.

---

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