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TI-2023-20256 Aliases CVE-2023-39022GHSA-859m-2pfx-fwhf

oscore v2.2.6 and below was discovered to contain a code injection vulnerability in the…

Priority HIGH 82CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

oscore v2.2.6 and below was discovered to contain a code injection vulnerability in the component com.opensymphony.util.EJBUtils.createStateless. This vulnerability is exploited via passing an unchecked argument.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0118 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
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
——all versions—No fix listedCNA
—opensymphony:oscore (Maven)up to 2.2.6—No fix listedGHSA-859m-2pfx-fwhf
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • opensymphony:oscore (Maven) Vendor— Affected up to 2.2.6 Fixed in — No fix listed GHSA-859m-2pfx-fwhf

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:oscore:oscore:*:*:*:*:*:*:*:*up to 2.2.6VulnerableOscore
  • cpe:2.3:a:oscore:oscore:*:*:*:*:*:*:*:* Versions up to 2.2.6 Vulnerable ·Oscore

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-39022
  2. 2026-10-03 Alias added: GHSA-859m-2pfx-fwhf

References

Sources