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.
Published: 2026-09-22
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Deployments that can't upgrade immediately should firewall or VPN the /invoker/* endpoints and restrict them to only those who genuinely need access.

Tracking

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Advisories

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History

Tue, 22 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title openEQUELLA < 2026.1.0 Authenticated RCE via Java Deserialization in HTTP Invoker
Weaknesses CWE-184
CWE-502
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-22T20:30:55.804Z

Reserved: 2026-07-29T21:07:39.203Z

Link: CVE-2026-67615

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-22T21:17:31.100

Modified: 2026-09-22T21:17:31.100

Link: CVE-2026-67615

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T21:30:20Z

Weaknesses
  • CWE-184

    Incomplete List of Disallowed Inputs

  • CWE-502

    Deserialization of Untrusted Data