How severe is CVE-2026-46839?

CVE-2026-46839 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-46839 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-46839?

CVE-2026-46839 affects Oracle Rest Data Services. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-46839?

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.

Does CVE-2026-46839 have an EU (EUVD) identifier?

Yes. CVE-2026-46839 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33017.

When was CVE-2026-46839 published?

CVE-2026-46839 was published on 2026-05-28 and last updated on 2026-07-21.

CVE-2026-46839

CVE-2026-46839 is a critical-severity vulnerability in Oracle Rest Data Services with a CVSS 3.x base score of 9.9. 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 9.9)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33017
Weakness: CWE-284
Affected product: Oracle Rest Data Services
Published: 2026-05-28
Last modified: 2026-07-21

Description

Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle REST Data Services. While the vulnerability is in Oracle REST Data Services, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle REST Data Services. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

Frequently asked questions

What is CVE-2026-46839?: Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle REST Data Services. While the vulnerability is in Oracle REST Data Services, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle REST Data Services. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
How severe is CVE-2026-46839?: CVE-2026-46839 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-46839 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-46839?: CVE-2026-46839 affects Oracle Rest Data Services. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-46839?: 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.
Does CVE-2026-46839 have an EU (EUVD) identifier?: Yes. CVE-2026-46839 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33017.
When was CVE-2026-46839 published?: CVE-2026-46839 was published on 2026-05-28 and last updated on 2026-07-21.

References

https://www.oracle.com/security-alerts/cspumay2026.html

Affected products (1)

cpe:2.3:a:oracle:rest_data_services:*:*:*:*:*:*:*:*

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