Skip to main content

Oracle Coherence CVE-2026-60302

| EUVDEUVD-2026-46717 CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-07-21 oracle GHSA-368c-8453-jwg6
9.8
CVSS 3.1 · Vendor: oracle
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Reach Coherence TCP proxy/cluster port
  2. Delivery
    Send crafted Core protocol message
  3. Exploit
    Trigger unauthenticated flaw in node
  4. Execution
    Execute code and take over node
  5. Impact
    Access cached data and pivot

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires TCP network reachability to an Oracle Coherence Core listener - a cluster member port or a Coherence*Extend proxy endpoint - on affected versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0. Per the CVSS vector (AV:N/AC:L/PR:N/UI:N), no authentication, no user interaction, and no special non-default configuration are needed against a reachable node: no special conditions beyond network access - remote unauthenticated exploitation against reachable configurations of Oracle Coherence. The primary limiting factor is network exposure: Coherence cluster and proxy ports are frequently confined to internal application tiers, so deployments with proper segmentation and no internet-facing proxy substantially reduce realistic exploitability, while flat networks or exposed proxies face the full risk.

Impact

All available severity signals point the same direction: the CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H yields 9.8 Critical - remote, network-reachable, low-complexity exploitation with no privileges or user interaction and total CIA impact. Oracle's own wording ('easily exploitable', 'takeover') reinforces the low-complexity assessment. Counterbalancing signals are absent rather than reassuring: no EPSS score was provided, so exploitation probability cannot be quantified; the CVE is not in CISA KEV, so there is no confirmed active exploitation; and no POC was supplied, so no public exploit is identified at time of analysis. The 'Information Disclosure' tag understates the actual impact, which the vector marks as full integrity and availability compromise as well - treat the tag as incomplete and defer to the CVSS vector. Because Coherence proxy/cluster ports are usually exposed only within application tiers, real-world exposure hinges on network segmentation; internet-exposed or flat-network deployments face the full 9.8 risk.

Exploit ScenarioDerived

An attacker who can reach a Coherence cluster or Coherence*Extend proxy port - for example from a compromised host on the same data-center network or an internet-exposed proxy - sends a single crafted TCP message to the Core listener and, because no authentication or user interaction is required, gains code execution or full takeover of the Coherence node. From there they read and manipulate all cached application data and pivot into the surrounding Fusion Middleware/WebLogic environment. No public POC is identified at time of analysis, but the low attack complexity means weaponization would be straightforward once details circulate.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.5% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 21, 2026

Remote takeover of Oracle Coherence (Fusion Middleware Core component) lets an unauthenticated attacker with TCP network access fully compromise the in-memory data grid. Oracle rates this CVSS 3.1 9.8 with full confidentiality, integrity, and availability impact and describes it as easily exploitable, meaning a single crafted network interaction against a reachable cluster node can yield complete control. No public exploit is identified at time of analysis and it is not listed in CISA KEV, but the low complexity and no-authentication profile make it a high-priority patch in the July 2026 Oracle Critical Patch Update.

RemediationAI

Apply the Oracle July 2026 Critical Patch Update (CPU) for Oracle Coherence, which addresses the affected release trains 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0; consult https://www.oracle.com/security-alerts/cpujul2026.html for the exact patch bundle and version applicable to your deployment. Patch status: patch available per vendor advisory (Oracle CPU) - an exact fix version string is not enumerated in the provided data, so verify the specific bundle in the advisory and do not treat any version number as confirmed without checking. Until patched, restrict network access to Coherence cluster and Coherence*Extend proxy ports (commonly TCP 8088/9099 and dynamically allocated cluster ports) with firewall rules and network segmentation so only trusted application hosts can reach them, and never expose these ports to the internet or untrusted VLANs (trade-off: overly tight rules can break legitimate cross-node clustering, so validate cluster membership after changes). Where Coherence*Extend is not required, disable the proxy service to shrink the attack surface. Enable the Coherence Security Framework and SSL for cluster and extend traffic where supported to require authentication and encryption on the wire (trade-off: added configuration effort and slight latency).

Affected VersionsENISA

Oracle Coherence 14.1.1.0.0
Oracle Coherence 15.1.1.0.0
Oracle Coherence 14.1.2.0.0
Oracle Coherence 12.2.1.4.0

Affected Packages

euvd oracle_coherence no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Oracle Coherence is a distributed in-memory data grid and caching platform bundled with Oracle Fusion Middleware and WebLogic Server, used to share and cluster application state across JVM nodes over TCP (typically the Coherence*Extend proxy and cluster ports). The flaw resides in the Core component and is reachable over the cluster/proxy network protocol. Oracle assigned no CWE (CWE: N/A), but the pattern of unauthenticated network-based full takeover in Java middleware of this type is historically consistent with unsafe deserialization of untrusted data (CWE-502) in the Coherence wire protocol; this root-cause class is inferred from the impact profile, not confirmed by Oracle. The affected CPE is cpe:2.3:a:oracle_corporation:oracle_coherence:*, spanning multiple middleware release trains.

Know when Oracle Coherence gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (oracle) PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 9.8 CRITICAL

Oracle confirms unauthenticated, network-reachable, easily exploitable full takeover, so AV:N/AC:L/PR:N/UI:N with full C/I/A high and unchanged scope.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). 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 TCP 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).

Executive ViewAI

Why It Matters

Oracle Coherence in-memory data grids can be remotely compromised by unauthenticated attackers, enabling complete access to sensitive cached data and potential system manipulation. This CVSS 9.8 vulnerability in Fusion Middleware Core deployments poses immediate risk to data confidentiality and system availability; while no public exploit has been identified, the lack of available vendor patches and ease of exploitation create urgent business continuity and data breach risk.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Implement strict network segmentation isolating Coherence clusters from untrusted networks; restrict all cluster access to VPN-authenticated or jump-box connections; deploy intrusion detection monitoring on cluster communication ports with alerts for anomalous connection patterns; enable comprehensive audit logging of cluster membership events and data queries; maintain daily monitoring of security advisories and vulnerability feeds for exploit indicators.

Threat Intelligence Overview

EPSS Score
0.5%
Top 61% exploitable
Prevalence
High
widely bundled with Oracle Fusion Middleware/WebLogic in enterprises
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.5%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Out-of-Cycle
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
Very High
Technical Impact
Total

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2026-35308 CRITICAL
10.0 Jun 16

Remote takeover of Oracle Coherence (Fusion Middleware) via the Centralized Third Party Jars component allows an unauthe

CVE-2026-35307 CRITICAL
10.0 Jun 16

Remote takeover of Oracle Coherence is possible via HTTP by an unauthenticated network attacker, affecting Oracle Fusion

CVE-2026-60217 CRITICAL
10.0 Jul 21

Complete takeover of Oracle Coherence is achievable by an unauthenticated remote attacker over TCP, with the Core compon

CVE-2026-35310 CRITICAL
9.8 Jun 16

Remote takeover of Oracle Coherence (Fusion Middleware component) is possible by unauthenticated network attackers reach

CVE-2026-35309 CRITICAL
9.8 Jun 16

Remote takeover of Oracle Coherence is possible by unauthenticated attackers with HTTP network access to affected Fusion

CVE-2026-35304 CRITICAL
9.8 Jun 16

Remote unauthenticated takeover of Oracle Coherence (Oracle Fusion Middleware) is possible over HTTPS, affecting support

CVE-2026-60300 CRITICAL
9.8 Jul 21

Remote takeover of Oracle Coherence (the Core component of Oracle Fusion Middleware) allows an unauthenticated attacker

CVE-2026-60299 CRITICAL
9.8 Jul 21

Full takeover of Oracle Coherence (Core component) in Oracle Fusion Middleware versions 14.1.1.0.0, 14.1.2.0.0, and 15.1

CVE-2026-60298 CRITICAL
9.8 Jul 21

Complete takeover of Oracle Coherence (Oracle Fusion Middleware Core component) is achievable by an unauthenticated remo

CVE-2026-60297 CRITICAL
9.8 Jul 21

Full compromise of Oracle Coherence, the in-memory data grid within Oracle Fusion Middleware, is possible over the netwo

CVE-2026-60296 CRITICAL
9.8 Jul 21

Complete takeover of Oracle Coherence is possible when an unauthenticated attacker with TCP network access exploits a Co

CVE-2026-60290 CRITICAL
9.8 Jul 21

Complete compromise of Oracle Coherence (Oracle Fusion Middleware Core component) is possible by unauthenticated remote

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy