PT-2026-34069 · Oracle · Oracle Database Server

Published 2026-04-21 · Updated 2026-04-27 · CVE-2026-21999

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Oracle Database Server versions 23.4.0 through 23.26.1

Description An issue exists in the XML Database component of Oracle Database Server. An unauthenticated attacker with network access via HTTPS can compromise the XML Database, although the attack is difficult to execute and requires human interaction from a person other than the attacker. Successful exploitation can lead to unauthorized access to critical data or complete access to all accessible XML Database data.

Recommendations For versions 23.4.0 through 23.26.1, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-21999

Affected Products

Oracle Database Server

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-21999 · Security Note
• https://oracle.com/security-alerts/cpuapr2026.html · Vendor Advisory
• https://twitter.com/CVEnew/status/2048910142402621638 · Twitter Post