Authenticated Remote Code Execution in openEQUELLA by OpenEQUELLA
CVE-2026-67615

8.7HIGH

Key Information:

Vendor

Apereo Foundation

Status
Openequella
Vendor
CVE Published:
22 September 2026

Badges

👾 Exploit Exists

What is CVE-2026-67615?

The openEQUELLA platform, prior to version 2026.1.0, harbors a significant vulnerability that permits authenticated users to execute arbitrary code. This is achieved through a flaw in the Java deserialization process associated with the HTTP invoker endpoint. By circumventing the class-name denylist via nested serialized payloads within a java.security.SignedObject, adversaries can trigger an ObjectInputStream that ignores the denylist protections. This ultimately leads to the deserialization of malicious code at a JNDI sink, allowing for potential code execution on the server.

Affected Version(s)

openEQUELLA 0 < 2026.1.0

References

https://blog.evan.lat/posts/openeq
technical-descriptionexploit
https://github.com/openequella/openEQUELLA/releases/tag/2...
release-notespatch
https://www.vulncheck.com/advisories/openequella-authenti...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

evan
VulnCheck
.