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Oracle Coherence CVE-2026-60269

| EUVDEUVD-2026-46684 CRITICAL
Improper Access Control (CWE-284)
2026-07-21 oracle GHSA-7qw5-jfjw-g9gv
9.8
CVSS 3.1 · Vendor: oracle
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Attack ChainAIDerived

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

  1. Access
    Reach Coherence TCP listener
  2. Delivery
    Send crafted request to Core endpoint
  3. Exploit
    Exploit unauthenticated protocol flaw
  4. Execution
    Achieve full Coherence takeover
  5. Impact
    Read/modify cached data and control process

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

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

Exploitation Conditions

No special conditions - remote unauthenticated exploitation over TCP against Oracle Coherence, per Oracle's 'easily exploitable' assessment and the AV:N/AC:L/PR:N/UI:N vector. The concrete prerequisite is network reachability to a Coherence cluster member or Coherence*Extend proxy TCP listener; exploitation is limited only where those ports are firewalled off from the attacker or the deployment exposes no reachable Core/proxy listener. Affected versions are limited to 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0, so releases outside that list fall outside the stated scope.

Impact

All available signals point to genuine priority rather than an inflated CVSS. The vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) describes a network-reachable, low-complexity, unauthenticated attack with unchanged scope but full C/I/A compromise, and Oracle itself labels it 'easily exploitable.' Countervailing signals: this is not on CISA KEV and no proof-of-concept is referenced, so there is no confirmation of active or public exploitation, and no EPSS score was supplied to gauge exploitation probability. There is also a data conflict worth flagging: the source Tags list 'Information Disclosure' only, whereas the CVSS vector and description assert full integrity and availability impact plus complete takeover - treat the tag as an incomplete label and defer to the CVSS/description, but verify scope with Oracle. No SSVC decision data was provided. Net: a high-severity, low-friction, unauthenticated network vulnerability in enterprise middleware - patch promptly even without in-the-wild reports.

Exploit ScenarioDerived

An attacker who can reach a Coherence cluster member or Extend proxy TCP port from the network sends a crafted request to the Core communication endpoint, requiring no credentials and no user interaction. Because the flaw yields full takeover, the attacker gains control over the data grid - reading and modifying cached data and executing attacker-controlled logic in the Coherence process. No public proof-of-concept is currently identified, but the low attack complexity makes reliable exploitation plausible once details emerge.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 21, 2026

Remote takeover of Oracle Coherence (Core component) allows an unauthenticated attacker with TCP network access to fully compromise the in-memory data grid, per Oracle's July 2026 Critical Patch Update. The flaw carries a CVSS 3.1 base score of 9.8 with high confidentiality, integrity, and availability impact and no required privileges or user interaction. No public exploit identified at time of analysis, but the trivial exploitability and full-takeover impact make this a high-priority patch for affected Fusion Middleware deployments.

RemediationAI

Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) for the affected versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 - Patch available per vendor advisory; Oracle does not publish a separate semantic fix build number, so consult the CPU patch matrix for the exact Coherence bundle patch for your release. Until patched, reduce exposure by restricting network reachability of the Coherence cluster and Coherence*Extend/proxy TCP ports to trusted hosts via firewall or network segmentation, and avoid exposing proxy listeners to untrusted or internet-facing networks; the trade-off is that overly tight filtering can break legitimate cluster membership or remote client connectivity, so validate the cluster port list before applying rules. Where Coherence*Extend proxies are not required, disable the external proxy tier to shrink the attack surface, accepting that remote non-cluster clients will lose access.

Affected VersionsENISA

Oracle Coherence 14.1.2.0.0
Oracle Coherence 15.1.1.0.0
Oracle Coherence 14.1.1.0.0
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 used within Oracle Fusion Middleware (frequently alongside WebLogic Server) to provide clustered caching, data partitioning, and low-latency access for enterprise Java applications. Cluster members communicate over TCP, and external clients connect through the Coherence*Extend/proxy tier, which is the network surface referenced by the AV:N vector. Oracle classifies the defect in the 'Core' component and did not assign a CWE (CWE: N/A); the 'takeover of Oracle Coherence' language combined with full C/I/A impact is consistent with an unauthenticated deserialization or protocol-handling flaw in the cluster/proxy communication path, a recurring root-cause class in Java middleware, though Oracle does not disclose the precise mechanism. The single reported CPE, cpe:2.3:a:oracle_corporation:oracle_coherence:*:*:*:*:*:*:*:*, is version-agnostic (wildcard) and does not by itself pin the affected releases - those come from the advisory text.

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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 states unauthenticated TCP network access and easy exploitability yielding full takeover, so AV:N/AC:L/PR:N/UI:N with high C/I/A.

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, a core component of Oracle Fusion Middleware, is vulnerable to unauthenticated remote takeover (CVE-2026-60269, CVSS 9.8) that permits complete compromise of the in-memory data grid and all protected data. Any organization running Coherence faces operational shutdown and data breach risk without immediate mitigation. This vulnerability demands emergency response.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Restrict network access to Coherence cluster ports via firewall rules limiting communication to known trusted internal hosts; deploy network-based intrusion detection and alerting on Coherence port traffic; maintain operational readiness for emergency Coherence shutdown if suspicious access indicators emerge; escalate through your Oracle TAM relationship for expedited patch delivery given the criticality and unauthenticated attack vector.

Threat Intelligence Overview

EPSS Score
0.4%
Top 72% exploitable
Prevalence
Medium
enterprise Fusion Middleware data grid, common but not ubiquitous
Data Quality
6 sources
Confidence: High

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 0.4%
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.

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