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Vulnerability record · CVE-2026-67615 · published 22 September 2026

CVE-2026-67615: Deserialization of untrusted data vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.54% · top 56.7% CWE-184 · CWE-184CWE-502 · Deserialization of untrusted data Awaiting Analysis
8.7CVSS 4.0 base score
0.54%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
24 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://blog.evan.lat/posts/openeq
https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0
https://www.vulncheck.com/advisories/openequella-authenticated-rce-via-java-deserialization-in-http-invoker

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Source: NIST National Vulnerability Database (record CVE-2026-67615), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.