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CVE-2026-35304 Oracle Corporation CVE debrief

A critical vulnerability was discovered in Oracle Coherence, a product of Oracle Fusion Middleware. The vulnerability affects versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. It allows unauthenticated attackers with network access via HTTPS to compromise Oracle Coherence, potentially leading to a takeover of the system. The CVSS 3.1 Base Score is 9.8, indicating a high severity level. Organizations should prioritize patching this vulnerability to prevent potential system compromise.

Vendor
Oracle Corporation
Product
Oracle Coherence
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-19
Advisory published
2026-06-17
Advisory updated
2026-06-19

Who should care

Organizations using Oracle Coherence versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 should prioritize patching this vulnerability to prevent potential system compromise. Security teams and vulnerability management teams should review the affected systems and plan for remediation. IT operators and administrators should be aware of the potential risks and take necessary precautions to protect the systems.

Technical summary

The vulnerability is located in the Core component of Oracle Coherence, a product of Oracle Fusion Middleware. It has a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating a high impact on confidentiality, integrity, and availability. The vulnerability can be exploited easily by unauthenticated attackers with network access via HTTPS, potentially leading to a takeover of Oracle Coherence systems. The CVSS 3.1 Base Score is 9.8, indicating a high severity level.

Defensive priority

High

Recommended defensive actions

  • Apply the patches provided by Oracle Corporation as soon as possible
  • Restrict network access to Oracle Coherence to only trusted users
  • Monitor Oracle Coherence systems for suspicious activity
  • Consider implementing additional security controls, such as Web Application Firewalls
  • Verify the integrity of Oracle Coherence systems and data
  • Review system logs for unusual activity related to Oracle Coherence
  • Perform a thorough risk assessment to identify potential vulnerabilities in the current infrastructure

Evidence notes

The CVE record for CVE-2026-35304 was published on 2026-06-17T10:40:22.517Z and was last modified on 2026-06-19T06:17:02.533Z. The NVD entry is currently Analyzed. The vulnerability affects Oracle Coherence versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. Evidence of exploitation is not currently available, but defenders should verify system logs for suspicious activity related to Oracle Coherence.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-35304 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-35304

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-35304 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-35304

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.