CVE-2026-15567: Vulnerability in Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
CVE-2026-15567 is a denial-of-service vulnerability in Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7. It arises from a flaw in Wildfly's CSIv2Util component, where an attacker can trigger an OutOfMemoryError by sending a maliciously crafted GSS token with an attacker-controlled length field that lacks bounds checking. This vulnerability allows a remote unauthenticated attacker to cause a denial of service without impacting confidentiality or integrity.
AI Analysis
Technical Summary
The vulnerability exists in Wildfly's CSIv2Util GSS token decoder, which reads an attacker-controlled length field without proper bounds checking and attempts to allocate a byte array of that size. This can lead to an OutOfMemoryError, causing a denial of service condition. The flaw affects Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7. Red Hat has issued a security update in version 7.4.25 to address this issue.
Potential Impact
An unauthenticated remote attacker can cause a denial of service by triggering an OutOfMemoryError, potentially disrupting availability of the affected application platform. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Red Hat has released an official security update in Red Hat JBoss Enterprise Application Platform 7.4.25 that fixes this vulnerability. Users should apply this update to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-15567: Vulnerability in Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
Description
CVE-2026-15567 is a denial-of-service vulnerability in Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7. It arises from a flaw in Wildfly's CSIv2Util component, where an attacker can trigger an OutOfMemoryError by sending a maliciously crafted GSS token with an attacker-controlled length field that lacks bounds checking. This vulnerability allows a remote unauthenticated attacker to cause a denial of service without impacting confidentiality or integrity.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability exists in Wildfly's CSIv2Util GSS token decoder, which reads an attacker-controlled length field without proper bounds checking and attempts to allocate a byte array of that size. This can lead to an OutOfMemoryError, causing a denial of service condition. The flaw affects Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7. Red Hat has issued a security update in version 7.4.25 to address this issue.
Potential Impact
An unauthenticated remote attacker can cause a denial of service by triggering an OutOfMemoryError, potentially disrupting availability of the affected application platform. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Red Hat has released an official security update in Red Hat JBoss Enterprise Application Platform 7.4.25 that fixes this vulnerability. Users should apply this update to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-h33j-vrhg-4q7j
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-15567"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Patch Information
Threat ID: 6a7cd3f2bf8831d539180a46
Added to database: 08/12/2026, 20:13:38 UTC
Last enriched: 09/18/2026, 01:58:06 UTC
Last updated: 09/27/2026, 13:47:42 UTC
Views: 44
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