Is CVE-2026-85634 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-85634 being exploited in the wild.

How severe is CVE-2026-85634?

High severity, with a CVSS score of 8.8, published 15 October 2026.

Which products and versions are affected?

Red Hat wildfly-core; Red Hat WildFly; Red Hat JBoss EAP.

Is there a fix for CVE-2026-85634?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-85634 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-85634?

Check whether you run Red Hat JBoss EAP, Red Hat WildFly or Red Hat WildFly Core. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-85634: WildFly and JBoss EAP path traversal in ContentRepositoryImpl

CVE-2026-85634 · Severity: high · CVSS 8.8 · Published 2026-10-15

WildFly and JBoss EAP are application servers that manage server deployments through the wildfly-core library. A path traversal flaw allows a privileged user with deployer permissions to escape the deployment directory, delete arbitrary files, and escalate to full administrative control over the server.

Technologies: Red Hat JBoss EAP, Red Hat WildFly, Red Hat WildFly Core. Vendors: Red Hat.

Quick answers

Is CVE-2026-85634 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-85634 being exploited in the wild.
How severe is CVE-2026-85634?: High severity, with a CVSS score of 8.8, published 15 October 2026.
Which products and versions are affected?: Red Hat wildfly-core; Red Hat WildFly; Red Hat JBoss EAP.
Is there a fix for CVE-2026-85634?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-85634 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-85634?: Check whether you run Red Hat JBoss EAP, Red Hat WildFly or Red Hat WildFly Core. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the ContentRepositoryImpl.copyExplodedContent function of wildfly-core, which fails to sanitize deployment names and lacks proper containment checks. An attacker with the Deployer RBAC role can inject path traversal sequences to access the filesystem outside the restricted deployment directory, enabling arbitrary file deletion and creation leading to privilege escalation to SuperUser.

Affected products

Red Hat wildfly-core
Red Hat WildFly
Red Hat JBoss EAP

Timeline

2026-10-15: disclosed: Vulnerability published

References

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