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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Apereo Foundation openEQUELLA unaffected
Version Status Constraints
0 affected < 2026.1.0

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the 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.

References
Link Providers
https://github.com/openequella/openEQUELLA/releases/tag/2026.1.0 cve-icon cve-icon
https://www.vulncheck.com/advisories/openequella-authenticated-rce-via-java-deserialization-in-http-invoker cve-icon cve-icon
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'}

Projects

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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