EUVD-2026-62105
GHSA-m5vq-hm6p-q5gr
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Oracle describes unauthenticated, easily exploitable HTTP-based full takeover with no user interaction, supporting AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H; scope unchanged as impact stays within the Helidon process.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.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 takeover of Helidon. 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).
AnalysisAI
Full remote takeover in Oracle Helidon 3.2.18 (Fusion Middleware, Imperative Web Server component) allows an unauthenticated attacker with only HTTP network access to fully compromise the affected instance. Oracle rates the flaw CVSS 3.1 9.8 with high confidentiality, integrity, and availability impact and describes it as "easily exploitable," fixed in the August 2026 Critical Patch Update. …
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
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires only that a Helidon 3.2.18 instance using the Imperative Web Server (Helidon SE WebServer) component be reachable over HTTP by the attacker - no authentication, no user interaction, and no special product configuration are stated as prerequisites (AV:N/AC:L/PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority issue rather than an inflated high-CVSS score: the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) describes network-reachable, low-complexity, unauthenticated exploitation with no user interaction, and Oracle explicitly calls it 'easily exploitable' resulting in full takeover - the strongest possible real-world risk profile short of confirmed active exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the fix delivered in the Oracle August 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cspuaug2026.html) - patch available per vendor advisory; a specific fixed Helidon build number was not included in the provided data, so consult the CPU matrix for the exact patched version and upgrade off 3.2.18. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all systems running Oracle Helidon 3.2.18 and immediately restrict HTTP network access to affected instances via firewall rules, disabling external exposure where operationally feasible. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "/
Scope-changing compromise of Oracle Helidon 4.5.3 (Imperative Web Server component) lets a remote, unauthenticated attac
Remote takeover in Oracle Helidon 4.5.0 lets an unauthenticated attacker fully compromise the framework's Imperative Web
Remote takeover of Oracle Helidon 3.2.18 (Imperative Web Server component, part of Oracle Fusion Middleware) allows an u
Remote takeover in Oracle Helidon 1.4.20 (Imperative Web Server component of Oracle Fusion Middleware) allows an unauthe
Remote takeover of Oracle Helidon 4.5.0 is possible when an unauthenticated attacker reaches the Imperative Web Server c
Complete takeover of Oracle Helidon 4.5.0 is achievable by remote, unauthenticated attackers over HTTP through the Imper
Unauthenticated remote compromise of Oracle Helidon 3.2.18 (Imperative Web Server component) lets network attackers read
Unauthenticated remote compromise in Oracle Helidon 4.5.0's Imperative Web Server component lets network attackers reach
Unauthenticated remote compromise of Oracle Helidon 4.5.0 (Imperative Web Server component, part of Oracle Fusion Middle
Authentication bypass in Oracle Helidon 3.2.18 (Imperative Web Server component of Oracle Fusion Middleware) lets an una
Unauthenticated compromise of Oracle Helidon 4.5.0 lets a remote attacker over HTTP read, create, modify, or delete all
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today