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Oracle Coherence CVE-2026-60231

| EUVDEUVD-2026-46646 MEDIUM
Improper Access Control (CWE-284)
2026-07-21 oracle GHSA-6vf8-w2pq-j8rx
5.4
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
    Obtain low-privileged Coherence HTTP credentials
  2. Delivery
    Connect to Coherence Core HTTP endpoint
  3. Exploit
    Send crafted request exploiting authorization bypass
  4. Execution
    Access unauthorized cache partitions or data regions
  5. Impact
    Read sensitive cached data or inject/modify records

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

Exploitation requires a valid low-privileged account with network-level HTTP access to the Oracle Coherence Core component - unauthenticated attackers cannot exploit this vulnerability per the CVSS PR:L designation. The 'Authentication Bypass' tag indicates the flaw allows a low-privileged principal to exceed their authorized data access boundary within Coherence (e.g., reading or writing cache partitions not assigned to their role), not that authentication itself is circumvented. The Oracle description explicitly states the attacker must have 'network access via HTTP,' meaning the Coherence HTTP interface must be reachable from the attacker's network position. No special non-default configuration is described as required beyond a standard Coherence deployment with its HTTP interface exposed. Limiting factors include: (1) a valid Coherence credential at any privilege level is mandatory; (2) network connectivity to the HTTP endpoint is required; (3) impact is bounded to data accessible within Oracle Coherence and does not extend to the underlying OS or other Middleware components.

Impact

The CVSS 3.1 score of 5.4 (Medium) accurately reflects the constrained impact envelope: exploitation is network-accessible and low-complexity (AV:N/AC:L), but requires a valid low-privileged credential (PR:L), and the blast radius is limited to partial confidentiality and integrity loss with no availability impact (C:L/I:L/A:N/S:U). No EPSS score was provided in the available data, precluding probabilistic exploitation comparison. The vulnerability is not in CISA KEV, and no public PoC is known - exploitation status is 'no public exploit identified at time of analysis.' The 'Authentication Bypass' tag introduces a nuance: the flaw appears to allow low-privileged credentials to exercise access rights beyond their authorized scope, not to bypass authentication entirely, which meaningfully limits opportunistic exploitation to actors who can first obtain valid credentials. Real-world priority is moderate for organizations running Oracle Coherence with network-exposed HTTP endpoints and a broad internal user or service account base; organizations with strict network segmentation and tightly controlled Coherence credentials face lower practical risk. No conflicting signals exist between the CVSS vector and the description, and the vendor-assigned score is consistent with the stated impact bounds.

Exploit ScenarioDerived

An attacker holding a low-privileged Coherence account - such as a compromised application service credential or an insider with minimal permissions - sends crafted HTTP requests directly to the Oracle Coherence Core component, exploiting the authorization boundary flaw to access cache regions or data partitions outside their permitted scope. The attacker can read sensitive cached data (application session state, business data, or credentials held in cache) or modify cached records to tamper with application integrity, without needing elevated privileges or triggering user interaction. No public PoC is known, but the low attack complexity (AC:L) means that once credentials are obtained, exploitation does not require specialized tooling.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 22, 2026

Oracle Coherence (Core component) across all currently supported versions exposes authenticated low-privileged network attackers to unauthorized data access and manipulation over HTTP, enabling both partial read access and unauthorized insert, update, or delete operations on Coherence-accessible cached data. Disclosed as part of Oracle's July 2026 Critical Patch Update, this medium-severity flaw is tagged as an Authentication Bypass, suggesting that a low-privileged credential confers data access beyond its intended authorization scope rather than enforcing proper boundary controls. No public exploit code exists and the vulnerability is not listed in CISA KEV at time of analysis, but the low attack complexity (AC:L) and absence of required user interaction mean exploitation is straightforward for any attacker holding valid Coherence credentials.

RemediationAI

The primary remediation is to apply the Oracle Critical Patch Update for July 2026, available at https://www.oracle.com/security-alerts/cpujul2026.html, which addresses this vulnerability across all four affected Oracle Coherence versions (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, 15.1.1.0.0). Exact patched version identifiers should be retrieved directly from the Oracle advisory, as specific fix version numbers were not independently confirmed in the available intelligence data. As compensating controls prior to patching: restrict network access to Oracle Coherence HTTP and REST management endpoints to trusted internal subnets or named IP ranges using host-based or network firewall rules - this reduces the pool of potential attackers to those already on trusted segments, though it does not eliminate risk for insider-threat scenarios. Additionally, audit and minimize the set of low-privileged accounts with network access to Coherence services, revoking any service or shared accounts that do not require direct Coherence HTTP access. These mitigations reduce exposure but do not remediate the underlying authorization flaw and should not substitute for patching.

Affected VersionsENISA

Oracle Coherence 14.1.1.0.0
Oracle Coherence 14.1.2.0.0
Oracle Coherence 15.1.1.0.0
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 Oracle's in-memory data grid and distributed caching platform, part of the Oracle Fusion Middleware stack, commonly deployed to provide high-performance shared session state, real-time caching, and event-driven data processing for enterprise Java applications. The affected component is Core - the fundamental data access, partitioning, and cluster communication layer - which exposes management and data interfaces over HTTP. The CPE (cpe:2.3:a:oracle_corporation:oracle_coherence:*:*:*:*:*:*:*:*) confirms all versions in the named range are affected. No CWE was assigned (N/A in source data), but the 'Authentication Bypass' tag from ENISA EUVD (EUVD-2026-46646) points to an improper authorization enforcement flaw - likely within the Core HTTP interface - where a low-privileged principal can access or manipulate cache partitions, data stores, or management endpoints outside their authorized scope. The attack operates entirely over HTTP, consistent with Coherence's REST or cluster management interfaces rather than requiring a local or out-of-band vector.

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Severity by source

Vendor (oracle) PRIMARY 5.4 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
vuln.today AI 5.4 MEDIUM

Network-accessible HTTP with low-privilege credential requirement; scope unchanged, no availability impact, partial confidentiality and integrity loss only.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

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

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 low privileged attacker with network access via HTTP to compromise Oracle Coherence. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Coherence accessible data as well as unauthorized read access to a subset of Oracle Coherence accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Threat Intelligence Overview

EPSS Score
0.2%
Top 85% exploitable
Prevalence
Medium
enterprise Java middleware caching, not universally deployed
Data Quality
4 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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +27
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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