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IBM WebSphere Application Server CVE-2026-10845

| EUVDEUVD-2026-38288 HIGH
Improper Authentication (CWE-287)
2026-06-22 ibm GHSA-8fp2-p896-ch7x
IBM Authentication Bypass Websphere Application Server
7.3
CVSS 3.1 · Vendor: ibm
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Severity by source

Vendor (ibm) PRIMARY
7.3 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
vuln.today AI
7.3 HIGH

Remote, no-auth bypass of JAX-WS authentication (AV:N/AC:L/PR:N/UI:N); impacts limited to what the affected JAX-WS apps expose, not full WAS compromise, so C/I/A:L.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (ibm).

CVSS VectorVendor: ibm

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Jun 22, 2026 - 18:23 vuln.today
CVSS changed
Jun 22, 2026 - 18:23 NVD
7.3 (HIGH)
CVE Published
Jun 22, 2026 - 14:43 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to bypass authentication and gain unauthorized access to JAX-WS applications.

AnalysisAI

Authentication bypass in IBM WebSphere Application Server 8.5 and 9.0 allows remote attackers to gain unauthorized access to JAX-WS web service applications without valid credentials. The CVSS 7.3 score reflects network-reachable, no-authentication exploitation with partial confidentiality, integrity, and availability impact. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify exposed JAX-WS endpoint on WebSphere
Delivery
Send crafted SOAP request bypassing authentication
Exploit
JAX-WS engine processes request as trusted
Execution
Invoke protected web service operations
Impact
Read or modify application data
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Vulnerability AssessmentAI

Exploitation The target must run IBM WebSphere Application Server 8.5.x or 9.0.x at a maintenance level below the IBM-issued interim fix referenced in advisory 7276597, and must have at least one JAX-WS application deployed and reachable by the attacker (vulnerability is scoped to JAX-WS applications per the IBM description, so installations without JAX-WS endpoints are not exposed via this vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N indicates remote, low-complexity, unauthenticated exploitation against any internet- or intranet-reachable JAX-WS endpoint, which is a serious exposure profile for enterprise middleware. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker who can reach a WebSphere-hosted JAX-WS endpoint (over the internet or from a compromised internal host) sends a crafted SOAP request that triggers the authentication bypass and is processed by the application as if it came from a legitimate authenticated principal. The attacker then invokes JAX-WS operations to read or manipulate the data and business functions the service exposes. …
Remediation Patch available per vendor advisory: apply the IBM-provided interim fix or fix pack referenced at https://www.ibm.com/support/pages/node/7276597 for both the 8.5.x and 9.0.x branches (EUVD references Interim Fix 035 on the 8.5 stream and Interim Fix 017 on the 9.0 stream - confirm the exact IFix identifier for your installed maintenance level with IBM Support before deploying). … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Identify and inventory all systems running IBM WebSphere Application Server 8.5 or 9.0, particularly those exposed to networks or hosting mission-critical JAX-WS services. …

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CVE-2026-10845 vulnerability details – vuln.today
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