---
id: "CVE-2026-17291"
page: "https://infrastack.ai/live/CVE-2026-17291"
kind: "vulnerability"
aliases: ["CVE-2026-17291"]
title: "IBM API Connect: open redirect in OAuth sign-in enables account takeover"
severity: "high"
cvss: 8.7
epss: null
exploited: false
status: "open"
category: "vendor"
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: ["ibm-api-connect", "oauth", "open-redirect", "self-hosted", "vendor"]
not_affected_if: ["unaffected-version"]
published_at: "2026-11-07T05:18:36+00:00"
first_seen_at: "2026-11-07T05:46:01+00:00"
updated_at: "2026-11-07T06:21:03+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17291", "first_seen_at": "2026-11-07T05:46:01+00:00"}, {"source": "analyst", "url": "https://www.ibm.com/support/pages/node/7295635", "first_seen_at": "2026-11-07T06:21:03+00:00", "cites": ["https://www.ibm.com/support/pages/node/7295635", "https://www.ibm.com/support/pages/node/7295637", "https://www.ibm.com/support/pages/node/7290205"]}]
exploit_sources: []
---

# IBM API Connect: open redirect in OAuth sign-in enables account takeover

Link for people: https://infrastack.ai/live/CVE-2026-17291 (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 do not validate the redirect address used during OAuth 2.0 sign-in. An authenticated remote attacker can send sign-in results to an attacker-controlled location, which leads to account takeover.

_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 installed API Connect version. Affected: 10.0.8.0 to 10.0.8.12, and 12.1.0.0 to 12.1.1.2 (IBM lists V12 OnPrem). Fixed: 10.0.8.13 and 12.1.1.3. Also check whether OAuth 2.0 sign-in is used on your deployment.

## Fix

Upgrade to IBM API Connect 10.0.8.13 (10.0.8 line) or 12.1.1.3 (12.1 line). IBM lists no workarounds or mitigations.

## Timeline

- 2026-11-07T05:46:01+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-17291
- 2026-11-07T06:21:03+00:00 analyst https://www.ibm.com/support/pages/node/7295635 — IBM bulletins 7295635 (12.1.1.3) and 7295637 (10.0.8.13) list this CVE (CWE-601, CVSS 8.7, PR:L/UI:R); fix versions and 'no workarounds' read on IBM pages. Not exploited, no PoC seen; X not searched.

## Documents

- [advisory] IBM Security Bulletin: Multiple Vulnerabilities in IBM API Connect (v12.1.1.3) https://www.ibm.com/support/pages/node/7295635
- [advisory] IBM Security Bulletin: Multiple Vulnerabilities in IBM API Connect (10.0.8.13) https://www.ibm.com/support/pages/node/7295637
- [fix] IBM API Connect v12.1.1.3 is now available https://www.ibm.com/support/pages/node/7290205

## 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 perform account takeover due to an open redirect vulnerability. The redirect address used during OAuth 2.0 sign-in is not sufficiently validated, which could allow authentication results to be sent to an attacker-controlled location.

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