CVE-2026-67615

high

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.

References

https://github.com/openequella/openEQUELLA/security/advisories/GHSA-97gw-jwjx-fx9h

https://blog.evan.lat/posts/openeq

https://www.vulncheck.com/advisories/openequella-authenticated-rce-via-java-deserialization-in-http-invoker

https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-84866

Details

Source: Mitre, NVD

Published: 2026-09-22

Updated: 2026-10-29

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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

Severity: High

CVSS v4

Base Score: 8.7

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

Severity: High

EPSS

EPSS: 0.00542