CVE-2026-21999 PUBLISHED

Assigner: oracle
Reserved: 05.01.2026 Published: 21.04.2026 Updated: 21.04.2026

Vulnerability in the XML Database component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise XML Database. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all XML Database accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N).

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS Score: 5.3

Product Status

Vendor Oracle Corporation
Product Oracle Database Server
Versions
  • affected from 23.4.0 to 23.26.1 (incl.)

References

Problem Types