Improper input validation in Oracle WebLogic Server - CVE-2026-34305

 

Improper input validation in Oracle WebLogic Server - CVE-2026-34305

Published: April 22, 2026


Vulnerability identifier: #VU126742
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-34305
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The vulnerability exists due to improper input validation within the Web Services component in Oracle WebLogic Server. A remote non-authenticated attacker can exploit this vulnerability to gain access to sensitive information.


Affected software

Oracle WebLogic Server

How to mitigate CVE-2026-34305

Install updates from vendor's website.


External References

Related Security Bulletins