CVE-2026-67615

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.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-28)

CWEs

CWE-184, CWE-502

Published

2026-09-22

Modified

2026-10-29

Record from

the NVD, synced 2026-10-29

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

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