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TI-2026-47769 Aliases CVE-2026-67615GHSA-h2p3-9m67-89gr

openEQUELLA < 2026.1.0 Authenticated RCE via Java Deserialization in HTTP Invoker

Priority HIGH 73CWE-184Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00542 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed openEQUELLA (Apereo Foundation): 2026.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Apereo FoundationopenEQUELLAbefore 2026.1.02026.1.0Patch availableCNA
  • openEQUELLA VendorApereo Foundation Affected before 2026.1.0 Fixed in 2026.1.0 Patch available CNA

Remediation

  • Fix · CNA openEQUELLA (Apereo Foundation) Fixed in 2026.1.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-67615
  2. 2026-10-03 Alias added: GHSA-h2p3-9m67-89gr
  3. 2026-10-29 1 new reference · CNA

References

Exploit 1

Patch 1

Advisory 1

  • TI-2026-82261 OS command injection in openEQUELLA via system.execute CVSS 4.0CRITICAL 9.4
  • TI-2026-82264 Unauthenticated access to user details in openEQUELLA CVSS 4.0MEDIUM 6.9
  • TI-2026-82263 XML external entity injection in openEQUELLA allows file reads CVSS 4.0HIGH 7.1
  • TI-2026-82262 XML external entity injection in openEQUELLA SOAP API lets attackers read files CVSS 4.0MEDIUM 6.1
  • TI-2026-82265 Stored XSS in openEQUELLA pre-login notice via legacy logon page CVSS 4.0MEDIUM 4.8
  • TI-2026-82260 Stored XSS via pre-login notice image upload in openEQUELLA CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences