How severe is CVE-2026-73912?

CVE-2026-73912 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-73912 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-73912?

CVE-2026-73912 affects Oracle Helidon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-73912?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-73912 published?

CVE-2026-73912 was published on 2026-08-18 and last updated on 2026-08-28.

CVE-2026-73912

CVE-2026-73912 is a critical-severity vulnerability in Oracle Helidon with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Oracle Helidon
Published: 2026-08-18
Last modified: 2026-08-28

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4.4.1. 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).

Frequently asked questions

What is CVE-2026-73912?: Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4.4.1. 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).
How severe is CVE-2026-73912?: CVE-2026-73912 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-73912 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-73912?: CVE-2026-73912 affects Oracle Helidon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-73912?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-73912 published?: CVE-2026-73912 was published on 2026-08-18 and last updated on 2026-08-28.

References

https://www.oracle.com/security-alerts/cspuaug2026.html

Affected products (1)

cpe:2.3:a:oracle:helidon:4.5.0:*:*:*:*:*:*:*

More vulnerabilities in Oracle Helidon

CVE-2026-73930 — Critical (CVSS 9.9): Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported…
CVE-2026-73921 — Critical (CVSS 9.8): Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported…
CVE-2026-73905 — Critical (CVSS 9.8): Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported…
CVE-2026-71164 — Critical (CVSS 9.8): Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported…
CVE-2026-71152 — Critical (CVSS 9.8): Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported…
CVE-2026-71074 — Critical (CVSS 9.8): Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported…

All CVEs affecting Oracle Helidon →

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-83944 — Critical (CVSS 10.0): Improper access control in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-20192 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine…
CVE-2026-87230 — Critical (CVSS 10.0): Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The…
CVE-2026-54745 — Critical (CVSS 10.0): Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.17.0,…
CVE-2026-18886 — Critical (CVSS 10.0): ServiceNow has remediated an improper access control vulnerability that was identified in the ServiceNow AI platform.…
CVE-2026-76607 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Missing ACL check in download element in Fabrik < 4.7.2.

Browse all CWE-284 (Improper Access Control) vulnerabilities →