EUVD-2026-62107
GHSA-67hq-wjc8-p8r4
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Oracle describes unauthenticated HTTP-reachable compromise (AV:N/AC:L/PR:N/UI:N) with full data read/write (C:H/I:H) but only partial denial of service (A:L).
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:L
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 unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 9.4 (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:L).
AnalysisAI
Unauthenticated remote compromise of Oracle Helidon 3.2.18 (Imperative Web Server component) lets network attackers read, alter, or destroy all data the framework can access and degrade its availability. The flaw is remotely reachable over HTTP with no authentication or user interaction and carries a CVSS 3.1 base score of 9.4. …
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 | No special conditions - remote unauthenticated exploitation over HTTP against Oracle Helidon 3.2.18 running the Imperative Web Server component, per CVSS 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, not an inflated CVSS number: the vector AV:N/AC:L/PR:N/UI:N describes trivial remote reachability with no credentials, and the C:H/I:H impacts mean full read/write compromise of application data, tempered only by A:L (partial denial of service rather than full outage). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can reach a Helidon 3.2.18 endpoint over HTTP sends a crafted request that bypasses authentication and abuses the imperative web server's request handling, then reads or modifies backend data the application exposes and optionally degrades service availability. No credentials, user interaction, or local access are required, making the attack scriptable at scale. … |
| Remediation | Apply the fix delivered in Oracle's August 2026 Critical Patch Update as documented at https://www.oracle.com/security-alerts/cspuaug2026.html - Patch available per vendor advisory, though an exact fixed Helidon build number is not stated in the available data and should be taken directly from the CPU matrix. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all production and development systems running Oracle Helidon 3.2.18; isolate affected instances from untrusted network segments and restrict inbound HTTP access via firewall rules and Web Application Firewall policies; enable detailed access logging to support incident investigation if compromise occurred. …
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
Full remote takeover in Oracle Helidon 3.2.18 (Fusion Middleware, Imperative Web Server component) allows an unauthentic
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 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