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CVE-2026-4410

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service

HIGH
7.5
CVSS Score
Published: May 27, 2026 at 12:54 PM UTC
Updated: October 14, 2026 at 08:10 PM UTC
2 products affected across 1 vendorWebSphere Application ServerWebSphere Application Server Liberty

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

WebSphere Application Server· IBM
95%
19.0.0.7 ≤ v ≤ 26.0.0.58.5.0.0 ≤ v ≤ 8.5.5.299.0.0.0 ≤ v ≤ 9.0.5.2719.0.0.78.58.5.09.09.0.0
WebSphere Application Server Liberty· IBM
95%
19.0.0.726.0.0.5

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://www.ibm.com/support/pages/node/7273424

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-400

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