Skip to main content

Oracle Helidon EUVDEUVD-2026-62115

| CVE-2026-73871 MEDIUM
Improper Access Control (CWE-284)
2026-08-18 secalert_us@oracle.com GHSA-vw4g-q739-7m3m
Authentication Bypass Oracle Helidon
5.3
CVSS 3.1 · Vendor: oracle
Share

Severity by source

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

Network-reachable HTTP authentication bypass with read-only partial data exposure; no integrity or availability impact applies, and no privileges or interaction are required.

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

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

1
Analysis Generated
Aug 19, 2026 - 02:50 vuln.today

DescriptionCVE.org

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). The supported version that is affected is 3.2.18. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

AnalysisAI

Unauthorized data read in Oracle Helidon 3.2.18 allows unauthenticated remote attackers to access a subset of data served by the Imperative Web Server component over HTTP, with no credentials or user interaction required. Tagged as an Authentication Bypass by Oracle CERT, the flaw is classified as 'easily exploitable' in Oracle's August 2026 Critical Patch Update advisory. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify Helidon 3.2.18 HTTP endpoint via scanning
Exploit
Send unauthenticated HTTP request to protected resource
Execution
Trigger authentication bypass in Imperative Web Server
Impact
Read accessible Helidon data subset
Sign in to reveal

Vulnerability AssessmentAI

Exploitation No special configuration or authentication is required - exploitation is possible against any Helidon 3.2.18 instance with the Imperative Web Server component reachable over HTTP, consistent with the CVSS vector AV:N/AC:L/PR:N/UI:N. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) places this in the medium band: network-reachable, zero prerequisites, but limited to partial confidentiality loss with no integrity or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker performing HTTP reconnaissance against an internet-facing Oracle Helidon 3.2.18 service sends crafted requests to endpoints protected by the flawed Imperative Web Server access control layer, bypassing authentication checks without providing any credentials. The attacker retrieves a subset of application data - which may include API responses, internal state, or configuration fragments depending on deployment - purely via standard HTTP interactions. …
Remediation Apply the fix included in Oracle's August 2026 Critical Patch Update, details available at https://www.oracle.com/security-alerts/cspuaug2026.html. … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Threat intelligence, references, and detailed analysis are available after sign-in.

More in Helidon

View all
CVE-2021-29425 MEDIUM POC
4.8 Apr 13

In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "/
CVE-2026-73930 CRITICAL
9.9 Aug 18

Scope-changing compromise of Oracle Helidon 4.5.3 (Imperative Web Server component) lets a remote, unauthenticated attac
CVE-2026-71164 CRITICAL
9.8 Aug 18

Full remote takeover in Oracle Helidon 3.2.18 (Fusion Middleware, Imperative Web Server component) allows an unauthentic
CVE-2026-71152 CRITICAL
9.8 Aug 18

Remote takeover in Oracle Helidon 4.5.0 lets an unauthenticated attacker fully compromise the framework's Imperative Web
CVE-2026-71074 CRITICAL
9.8 Aug 18

Remote takeover of Oracle Helidon 3.2.18 (Imperative Web Server component, part of Oracle Fusion Middleware) allows an u
CVE-2026-73921 CRITICAL
9.8 Aug 18

Remote takeover in Oracle Helidon 1.4.20 (Imperative Web Server component of Oracle Fusion Middleware) allows an unauthe
CVE-2026-73912 CRITICAL
9.8 Aug 18

Remote takeover of Oracle Helidon 4.5.0 is possible when an unauthenticated attacker reaches the Imperative Web Server c
CVE-2026-73905 CRITICAL
9.8 Aug 18

Complete takeover of Oracle Helidon 4.5.0 is achievable by remote, unauthenticated attackers over HTTP through the Imper
CVE-2026-71166 CRITICAL
9.4 Aug 18

Unauthenticated remote compromise of Oracle Helidon 3.2.18 (Imperative Web Server component) lets network attackers read
CVE-2026-73920 CRITICAL
9.4 Aug 18

Unauthenticated remote compromise in Oracle Helidon 4.5.0's Imperative Web Server component lets network attackers reach
CVE-2026-71167 CRITICAL
9.4 Aug 18

Unauthenticated remote compromise of Oracle Helidon 4.5.0 (Imperative Web Server component, part of Oracle Fusion Middle
CVE-2026-71065 CRITICAL
9.3 Aug 18

Authentication bypass in Oracle Helidon 3.2.18 (Imperative Web Server component of Oracle Fusion Middleware) lets an una

Same weakness CWE-284 – Improper Access Control

View all
CVE-2012-4681 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2012-1723 CRITICAL POC
9.8
CVE-2012-5076 CRITICAL POC
9.8
CVE-2014-3120 HIGH POC
8.1
CVE-2013-2423 LOW POC
3.7
CVE-2016-3427 CRITICAL
9.8
CVE-2025-12480 CRITICAL POC
9.1

Same technique Authentication Bypass

View all
CVE-2023-22515 CRITICAL POC
9.8
CVE-2012-4681 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3
CVE-2023-46805 HIGH POC
8.2

Share

EUVD-2026-62115 vulnerability details – vuln.today
Back

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