Affects widely used enterprise app servers (WildFly / JBoss EAP) and allows Deployer->management SuperUser escalation; risk of full management takeover across many deployments.
CVE-2026-85634
Path traversal in WildFly allows Deployer role to escalate to management SuperUser.
Is CVE-2026-85634 being exploited?
Not confirmed. CVE-2026-85634 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.41% probability of exploitation in the next 30 days.
How severe is CVE-2026-85634?
CVE-2026-85634 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-85634?
Yes. A fix has been recorded for CVE-2026-85634. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-85634 affect?
CVE-2026-85634 affects wildfly-core (ContentRepositoryImpl.copyExplodedContent), WildFly application server, Red Hat JBoss EAP. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-85634?
Install vendor patch immediately; restrict Deployer RBAC and audit deployments.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unsanitized deployment name permits path traversal enabling Deployer to create/delete arbitrary files and escalate to management SuperUser (full takeover).
Immediate action required