# CVE-2026-17189 — IBM Security Verify Access

> As of 2026-10-08, CVE-2026-17189 is a HIGH-severity vulnerability in IBM Security Verify Access, CVSS v3.1 8.2, EPSS 0.1% (3.3th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-17189, most recently “IBM Verify Access / Verify Identity Access: 22 Flaws Patched Incl. Unauthenticated RCE via Deserialization (CVE-2026-78401, CVE-2026-78406)”.

**Last updated:** 2026-10-08

## What is CVE-2026-17189?

IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 is vulnerable to cross-site scripting. This vulnerability allows an unauthenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session

The record classifies CVE-2026-17189 under weakness class [CWE-79](https://intel.threadlinqs.com/cwe/CWE-79). Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity. 4 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 4 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.2 — HIGH (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 3.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-10-08

## Is CVE-2026-17189 being exploited?

It currently carries a trending score of 35 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [IBM](https://intel.threadlinqs.com/vendors/ibm): Security Verify Access, Verify Identity Access, Security Verify Access Container, Verify Identity Access Container

## How to fix CVE-2026-17189

No vendor patch reference has been recorded for CVE-2026-17189 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-17189

1 tracked threat in the Threadlinqs corpus references CVE-2026-17189, either in the campaign’s CVE list or as an indicator on the campaign record.

- [IBM Verify Access / Verify Identity Access: 22 Flaws Patched Incl. Unauthenticated RCE via Deserialization (CVE-2026-78401, CVE-2026-78406)](https://intel.threadlinqs.com/threat/TL-2026-3352) — CRITICAL · 2026-10-12

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-12.

**Vendor advisory and patch**

- [ibm.com — vendor advisory](https://www.ibm.com/support/pages/node/7291628)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-17189
Full detection coverage and IOCs for threats exploiting CVE-2026-17189 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp