CVE-2026-15563: Missing Authentication for Critical Function in Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
A flaw was found in EAP's IIOP. The listener's NameService would accept bind operations without authentication, allowing an attacker to hijack JNDI lookups and binding them to a malicious ORB, achieving MITM or DoS on further invocations.
AI Analysis
Technical Summary
CVE-2026-15563 describes a missing authentication vulnerability in the IIOP NameService listener of Red Hat JBoss Enterprise Application Platform (EAP) 7.4 versions before 7.4.25. The listener accepts bind operations without requiring authentication, which allows an attacker to hijack JNDI lookups by binding them to a malicious Object Request Broker (ORB). This can result in man-in-the-middle attacks or denial of service conditions on further invocations that rely on these lookups. The vulnerability is tracked under CWE-306 (Missing Authentication for Critical Function).
Potential Impact
Successful exploitation allows an unauthenticated attacker to hijack JNDI lookups, potentially enabling man-in-the-middle attacks or denial of service on affected services. The CVSS v3.1 base score is 7.4 (High), reflecting the network attack vector, high impact on confidentiality and integrity, and no required privileges or user interaction.
Mitigation Recommendations
An official security update is available in Red Hat JBoss Enterprise Application Platform version 7.4.25, which addresses this vulnerability. Users should upgrade to version 7.4.25 or later to remediate this issue. No additional mitigations are indicated by the vendor advisory.
CVE-2026-15563: Missing Authentication for Critical Function in Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
Description
A flaw was found in EAP's IIOP. The listener's NameService would accept bind operations without authentication, allowing an attacker to hijack JNDI lookups and binding them to a malicious ORB, achieving MITM or DoS on further invocations.
CVSS v3.1
Score 7.4high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15563 describes a missing authentication vulnerability in the IIOP NameService listener of Red Hat JBoss Enterprise Application Platform (EAP) 7.4 versions before 7.4.25. The listener accepts bind operations without requiring authentication, which allows an attacker to hijack JNDI lookups by binding them to a malicious Object Request Broker (ORB). This can result in man-in-the-middle attacks or denial of service conditions on further invocations that rely on these lookups. The vulnerability is tracked under CWE-306 (Missing Authentication for Critical Function).
Potential Impact
Successful exploitation allows an unauthenticated attacker to hijack JNDI lookups, potentially enabling man-in-the-middle attacks or denial of service on affected services. The CVSS v3.1 base score is 7.4 (High), reflecting the network attack vector, high impact on confidentiality and integrity, and no required privileges or user interaction.
Mitigation Recommendations
An official security update is available in Red Hat JBoss Enterprise Application Platform version 7.4.25, which addresses this vulnerability. Users should upgrade to version 7.4.25 or later to remediate this issue. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-259j-555g-mwrr
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-15563"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Patch Information
Threat ID: 6a7c9b72bf8831d539ce09c5
Added to database: 08/12/2026, 16:12:34 UTC
Last enriched: 09/12/2026, 05:02:03 UTC
Last updated: 09/25/2026, 13:47:43 UTC
Views: 49
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.