CVE-2026-8644

Name: CVE-2026-8644
Creator: NVD / NIST
Published: 2026-06-01T19:16:55.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2026-8644 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to identity spoofing.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to identity spoofing.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS Probability

0.32%

23.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Ibm	Websphere Application Server	>= 8.5.0.0, < 8.5.5.30
Ibm	Websphere Application Server	>= 9.0.0.0, < 9.0.5.29

References

https://www.ibm.com/support/pages/node/7274740Vendor Advisory

Timeline

Published: Jun 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-8644?

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to identity spoofing.

How severe is CVE-2026-8644?

CVE-2026-8644 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2026-8644?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-8644?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST