WebSphere JAX-WS Authentication Bypass Vulnerability

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.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

IBM WebSphere Application Server versions 8.5 and 9.0 contain an authentication bypass vulnerability (CVE-2026-10845, CVSS 7.3) that allows remote attackers to circumvent security controls and gain unauthorized access to JAX-WS (Java API for XML Web Services) applications. This vulnerability maps to CWE-287 (Improper Authentication), a fundamental weakness that directly compromises the integrity of access controls. Organizations running affected WebSphere versions in production environments face significant risk, as attackers can bypass login mechanisms without credentials, potentially accessing sensitive business logic, data, and backend systems that these web services expose. The threat is particularly acute for enterprises using JAX-WS for critical inter-service communication or customer-facing APIs.

Casky's 283 mapped security skills leverage Claude AI's extended reasoning to detect the attack patterns underlying this vulnerability across MITRE ATT&CK techniques TA0004 (Privilege Escalation) and TA0006 (Credential Access). Practitioners using Casky would identify suspicious indicators including: unauthenticated requests successfully reaching JAX-WS endpoints that should require authentication, abnormal authentication state transitions where security tokens are bypassed, and access patterns consistent with TA0004 where unprivileged requests gain elevated access. The platform's skill set would surface findings showing how attackers exploit improper authentication validation in WebSphere's JAX-WS handler chains, enabling practitioners to correlate network traffic, application logs, and security events to confirm exploitation attempts and scope affected systems before active exploitation occurs.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-10845.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

identity access management · low

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-10845

Casky has 283 skills that investigate the attack patterns behind CVE-2026-10845. Run one and get CVSS-scored findings in 3 minutes.

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