November 15, 2026

CVE Watchtower

CVE-2026-21962Oracle Http Server Improper Access Control

NVDCVSS scored by secalert_us@oracle.com

Vulnerability Summary

Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in. While the vulnerability is in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data. Note: Affected version for Weblogic Server Proxy Plug-in for IIS is 12.2.1.4.0 only. CVSS 3.1 Base Score 10.0 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N).
Severity Level
CRITICAL(10.0)
Published Date
Jan 20, 2026
Last Modified
Aug 25, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
42.48%Probability
Root Weakness (CWE)
CWE-284: Improper Access Control ↗
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVSS v3.1 Base Metrics — Score 10.0 (CRITICAL)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Oracle Http Server
  • Oracle Weblogic Server Proxy Plug-in
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Patch now. CISA lists this flaw as exploited in the wild and set a federal remediation deadline of Aug 27, 2026.

  1. Check whether you run Oracle Http Server and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.
  4. Review logs and exposed services for signs of earlier compromise.

CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA KEV Status

Listed in Known Exploited Vulnerabilities
Added: Aug 24, 2026
Remediation due: Aug 27, 2026 (deadline passed)

Timeline

  • Jan 20, 2026Published
  • Aug 24, 2026Added to CISA KEV catalog
  • Aug 25, 2026Record last modified
  • Aug 27, 2026KEV remediation due date

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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Related Coverage

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External References

Data last checked: Nov 15, 2026 17:11 UTC