CVE-2026-35309
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedVulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceAn unauthenticated remote code execution vulnerability in Oracle Coherence's Centralized Third Party Jars component allows attackers with network access via HTTP to achieve complete system compromise and takeover of the Coherence service. The flaw is easily exploitable and rates critical (CVSS 9.8) due to no authentication or user interaction required.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 12.2.1.4.0= 14.1.1.0.0= 14.1.2.0.0= 15.1.1.0.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Oracle Coherence installationLocate Oracle Coherence installation directory and check for coherence.jar or coherence-product.jar files. Common paths include $ORACLE_HOME/coherence or /opt/oracle/coherence. Use 'find / -name "coherence*.jar" 2>/dev/null' to locate JAR files.Affected if Oracle Coherence software is found on the system
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Determine installed Coherence versionCheck the coherence JAR manifest or product properties file. Run: 'unzip -p coherence.jar META-INF/MANIFEST.MF | grep Implementation-Version' or check coherence/product.properties for the Version property.Affected if The installed version matches exactly 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0
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Verify Centralized Third Party Jars is enabledExamine the Coherence configuration files (tangosol-coherence.xml, coherence-cache-config.xml) for the CentralizedThirdPartyJars or third-party JAR loading configuration. Check if the MBean com.oracle.coherence.management:name=ThirdPartyJars is registered via JMX.Affected if The Centralized Third Party Jars feature is configured or enabled in Coherence settings
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Check network exposure of Coherence management portsIdentify listening ports used by Coherence (default HTTP ports 30000-30099 for management). Run 'netstat -tlnp | grep -E "(300|coherence)"' or 'ss -tlnp' to list listening ports. Verify if HTTP management endpoints are accessible from untrusted networks.Affected if Coherence HTTP management interfaces are exposed to untrusted network access without firewall restrictions
A user is affected if they have Oracle Coherence installed with version 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0 AND the Centralized Third Party Jars feature is enabled AND the HTTP management ports are network-accessible.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply Oracle Critical Patch Updates addressing this vulnerability; if patches are unavailable, restrict network access to Coherence management interfaces and implement WAF rules for HTTP endpoints.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-35309 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-35309 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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