SB20261107430 - Multiple vulnerabilities in Oracle Database Server

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Main Vulnerability Database SB20261107430

SB20261107430 - Multiple vulnerabilities in Oracle Database Server

Published: November 7, 2026

Security Bulletin ID SB20261107430
CSH Severity
High
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 67% Medium 17% Low 17%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 vulnerabilities.


1) Improper input validation (CVE-ID: CVE-2026-71100)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


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

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 gain access to sensitive information.


2) Incorrect authorization (CVE-ID: CVE-2026-59889)

CWE-ID: CWE-863 - Incorrect Authorization

CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to escalate privileges.

The vulnerability exists due to improper access control in UnwrappedPropertyHandler.processUnwrapped() when deserializing @JsonUnwrapped container properties under a less-privileged active view. A remote user can supply crafted JSON values for a property annotated with both @JsonView and @JsonUnwrapped to escalate privileges.

This affects the write-side authorization behavior of @JsonView during deserialization, including merge and builder-based deserialization paths.


3) Improper input validation (CVE-ID: CVE-2026-71062)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 7.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote authenticated user to execute arbitrary code.

The vulnerability exists due to improper input validation within the RDBMS in Oracle Database Server. A remote authenticated user can exploit this vulnerability to execute arbitrary code.


4) Improper input validation (CVE-ID: CVE-2026-71102)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote non-authenticated attacker to damange or delete data.

The vulnerability exists due to improper input validation within the Clusterware in Oracle Database Server. A remote non-authenticated attacker can exploit this vulnerability to damange or delete data.


5) Improper input validation (CVE-ID: CVE-2026-71064)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The vulnerability exists due to improper input validation within the Clusterware in Oracle Database Server. A remote non-authenticated attacker can exploit this vulnerability to execute arbitrary code.


6) Improper input validation (CVE-ID: CVE-2026-71063)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The vulnerability exists due to improper input validation within the Clusterware in Oracle Database Server. A remote non-authenticated attacker can exploit this vulnerability to execute arbitrary code.


Remediation

Install update from vendor's website.

References