What’s Vulnerable › Vulnerabilities

CVE-2026-67615: openEQUELLA < 2026.1.0 Authenticated RCE via Java Deserialization in HTTP Invoker

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-22 · updated 2026-10-29
• Weakness: CWE-184

Description

openEQUELLA before 2026.1.0 contains an authenticated remote code execution vulnerability that allows any authenticated non-guest user to execute arbitrary code by exploiting Java deserialization in the HTTP invoker endpoint at /invoker/*. Attackers can bypass the class-name denylist enforced by PluginAwareObjectInputStream by nesting a serialized payload inside a java.security.SignedObject, causing the inner stream to be deserialized by a separate ObjectInputStream that does not apply the denylist, ultimately reaching a JNDI sink and enabling code execution.

Affected products

• Apereo Foundation openEQUELLA: before 2026.1.0 — fixed in 2026.1.0

How to fix

Upgrade to a fixed version: Apereo Foundation openEQUELLA 2026.1.0. Check the vendor advisory for mitigations.

References

• https://blog.evan.lat/posts/openeq
• https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0
• https://github.com/openequella/openEQUELLA/security/advisories/GHSA-97gw-jwjx-fx9h
• https://www.vulncheck.com/advisories/openequella-authenticated-rce-via-java-deserialization-in-http-invoker

Get alerted when CVE-2026-67615 or the next vulnerability affects your stack