What is the CVSS score of CVE-2026-70979?

CVE-2026-70979 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H. EPSS exploitation probability: 0.3%.

Which versions of Oracle Commerce are affected by CVE-2026-70979?

Oracle Commerce Guided Search/Experience Manager 11.4.0 contains a critical remote vulnerability (CVSS 9.1) that allows unauthenticated attackers to modify or delete all accessible e-commerce data…

How to fix or mitigate CVE-2026-70979?

Within 24 hours, immediately isolate the Content Acquisition System from external network access and disable HTTP connections to affected 11.4.0 instances; implement Web Application Firewall rules to block unauthorized CAS requests and restrict access to trusted internal IP ranges. Within 7 days, conduct rapid asset discovery to identify all affected Commerce instances, notify executive stakeholders and key customers of the unpatched vulnerability status, and deploy application-level role-based access controls to limit data modification scope. Within 30 days, engage Oracle support to confirm patch availability timeline, develop an upgrade strategy to patched versions, implement enhanced real-time alerting on create/modify/delete operations, and establish isolated backup retention policies to enable rapid recovery if data corruption occurs.

Oracle Commerce CVE-2026-70979

EUVD-2026-61926 CRITICAL

Missing Authentication for Critical Function (CWE-306)

2026-08-18 secalert_us@oracle.com

GHSA-5327-585q-6xwc

Authentication Bypass Oracle Commerce Guided Search Commerce Experience Manager

9.1

CVSS 3.1 · Vendor: oracle

Severity by source

Vendor (oracle) PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

vuln.today AI

9.1 CRITICAL

Remote unauthenticated HTTP access with low complexity (AV:N/AC:L/PR:N/UI:N); full data tampering and complete DOS give I:H/A:H, and no data disclosure gives C:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Aug 19, 2026 - 00:04 vuln.today

CVE Published

Aug 18, 2026 - 21:17 nvd

CRITICAL 9.1

DescriptionCVE.org

Vulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager product of Oracle Commerce (component: Content Acquisition System). The supported version that is affected is 11.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Commerce Guided Search / Oracle Commerce Experience Manager. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Commerce Guided Search / Oracle Commerce Experience Manager accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Commerce Guided Search / Oracle Commerce Experience Manager. CVSS 3.1 Base Score 9.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H).

AnalysisAI

Data tampering and complete denial-of-service in Oracle Commerce Guided Search / Experience Manager 11.4.0 lets a remote unauthenticated attacker reach the Content Acquisition System over HTTP to create, delete, or modify all accessible data and to force a persistent hang or repeatable crash. Rated CVSS 3.1 9.1 (Integrity and Availability high, Confidentiality none), it is easily exploitable per Oracle with no privileges or user interaction. …

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Vulnerability AssessmentAI

Exploitation	The vulnerable surface is the Content Acquisition System (CAS) HTTP interface of Oracle Commerce Guided Search / Experience Manager 11.4.0; per the CVSS vector (AV:N/AC:L/PR:N/UI:N) there are no special conditions - remote unauthenticated exploitation is possible against an affected 11.4.0 deployment whose CAS is reachable over the network. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The signals largely agree that this is a genuine high priority for anyone still running Oracle Commerce 11.4.0. … 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 fixes from Oracle's August 2026 Critical Patch Update (https://www.oracle.com/security-alerts/cspuaug2026.html); this is Patch available per vendor advisory, though the input does not state an exact patched build number for 11.4.0, so confirm the precise patch level with Oracle Support before deployment. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, immediately isolate the Content Acquisition System from external network access and disable HTTP connections to affected 11.4.0 instances; implement Web Application Firewall rules to block unauthorized CAS requests and restrict access to trusted internal IP ranges. …

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