CVE-2026-8646

9.1 criticalEPSS 0.6%

Critical (9.1) in ibm websphere application server. EPSS 0.6% chance of exploitation in the next 30 days.

IBM WebSphere Application Server 9.0 and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are vulnerable to HTTP request smuggling. A remote attacker could smuggle a specially crafted request to the application server thereby allowing the attacker to bypass security controls, spoof identity, escalate privilege, and expose sensitive information.

Severity

CVSS 3.1

9.1 critical

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWE: CWE-444
Published: 2026-06-22
Modified: 2026-06-24
Record from: the NVD, synced 2026-10-19

Affected

ibm:websphere_application_server

References

https://www.ibm.com/support/pages/node/7276579

Check your stack JSON