CVE-2026-67615Network attack vectorHinoki check available

Authenticated code execution via nested Java deserialization

Published Sep 22, 2026 · Updated Sep 22, 2026

Java deserialization in Apereo Foundation openEQUELLA before 2026.1.0 allows remote authenticated users to execute arbitrary code. PluginAwareObjectInputStream checks class names against a denylist, but a SignedObject inner stream is decoded by an unfiltered ObjectInputStream and reaches a JNDI sink. Any authenticated non-guest account can reach the endpoint; successful exploitation runs attacker-chosen code with the server process's privileges.

CVSS severityUnavailable
Unscored
EPSS probability0.54%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Java deserialization in Apereo Foundation openEQUELLA before 2026.1.0 allows remote authenticated users to execute arbitrary code. PluginAwareObjectInputStream checks class names against a denylist, but a SignedObject inner stream is decoded by an unfiltered ObjectInputStream and reaches a JNDI sink. Any authenticated non-guest account can reach the endpoint; successful exploitation runs attacker-chosen code with the server process's privileges.

The record

CVE
CVE-2026-67615
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Apereo Foundation
Product
openEQUELLA
Classifications
T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Apereo Foundation · openEQUELLAversion=0 <2026.1.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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