PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-46809 Oracle Corporation CVE debrief

A critical vulnerability was discovered in Oracle WebCenter Sites, a product of Oracle Fusion Middleware. The vulnerability, tracked as CVE-2026-46809, has a CVSS score of 9.1 and allows unauthenticated attackers with network access via HTTP to compromise the system. Successful attacks can result in unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to critical data or complete access to all Oracle WebCenter Sites accessible data. The vulnerability can be exploited via HTTP, and no authentication is required.

Vendor
Oracle Corporation
Product
Oracle WebCenter Sites
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

Organizations using Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 should prioritize patching this vulnerability to prevent potential attacks. Security teams and vulnerability management teams should review the affected scope and severity, and plan for vendor-supported updates or mitigations through normal change control.

Technical summary

The vulnerability, tracked as CVE-2026-46809, is caused by a weakness in the WebCenter Sites component of Oracle Fusion Middleware. It allows unauthenticated attackers with network access via HTTP to compromise the system, with a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N, indicating a high severity vulnerability. Successful attacks can result in unauthorized creation, deletion, or modification of critical data, as well as unauthorized access to critical data or complete access to all Oracle WebCenter Sites accessible data.

Defensive priority

High

Recommended defensive actions

  • Apply the patch provided by Oracle Corporation
  • Restrict access to Oracle WebCenter Sites to only trusted networks
  • Monitor Oracle WebCenter Sites for suspicious activity
  • Consider implementing additional security controls, such as web application firewalls
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-06-17T10:53:58.570Z and last modified on 2026-06-17T21:31:31.900Z. The NVD entry is currently Analyzed. Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 are confirmed affected. Defenders should verify patch deployment status and review system logs for potential exploitation attempts.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-46809 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-46809

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-46809 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-46809

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.