Vulnerability · Published Sep 22, 2026 · Assigned by VulnCheck
CVE-2026-67615openEQUELLA < 2026.1.0 Authenticated RCE via Java Deserialization in HTTP Invoker
High 8.8
In plain English
A high-severity unsafe deserialization in openEQUELLA from Apereo Foundation. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apereo Foundation | openEQUELLA | 0 – before 2026.1.0 |
Weakness: CWE-502, CWE-184 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- Researcher Blog technical-description, exploit
- openEQUELLA 2026.1.0 Release Notes release-notes, patch
- GitHub Security Advisory (GHSA-97gw-jwjx-fx9h) vendor-advisory
- https://www.vulncheck.com/advisories/openequella-authenticated-rce-via-java-deserialization-in-http-invoker third-party-advisory