Improper input validation in Oracle Database Server - CVE-2026-91479
Published: November 10, 2026
Vulnerability identifier: #VU163241
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-91479
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the RDBMS in Oracle Database Server. A remote non-authenticated attacker can exploit this vulnerability to perform a denial of service (DoS) attack.
Affected software
Oracle Database Server
How to mitigate CVE-2026-91479
Install updates from vendor's website.