CVE-2026-83156: Difficult to exploit vulnerability allows low privileged attacker having XDKC privilege with network access via Oracle Net to compromise Oracle XML Developers Kit. Successful attacks of this vulnerability can result in takeover of Oracle XML Developers Kit. in Oracle Corporation Oracle Database Server
CVE-2026-83156 is a vulnerability in the Oracle XML Developers Kit component of Oracle Database Server affecting versions 19.3 through 19.32, 21.3 through 21.23, and 23.4.0 through 23.26.3. It allows a low privileged attacker with XDKC privilege and network access via Oracle Net to potentially take over the Oracle XML Developers Kit. The vulnerability is rated high severity with a CVSS 3.1 base score of 7.5, impacting confidentiality, integrity, and availability.
AI Analysis
Technical Summary
This vulnerability in Oracle XML Developers Kit enables an attacker with low privileges (XDKC) and network access through Oracle Net to compromise the component, potentially leading to full takeover. The CVSS 3.1 vector indicates network attack vector, high attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. Affected versions include Oracle Database Server 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. Oracle has published this vulnerability as part of its September 2026 Critical Security Patch Update, which includes 673 security patches across multiple products.
Potential Impact
Successful exploitation can result in complete compromise of the Oracle XML Developers Kit component, affecting confidentiality, integrity, and availability of the system. The attacker requires network access and XDKC privilege, and the attack complexity is high. There are no known exploits in the wild at this time.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the September 2026 Critical Security Patch Update. Customers are strongly advised to apply the available patches promptly to affected versions. Oracle recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed as available via the official Oracle advisory.
CVE-2026-83156: Difficult to exploit vulnerability allows low privileged attacker having XDKC privilege with network access via Oracle Net to compromise Oracle XML Developers Kit. Successful attacks of this vulnerability can result in takeover of Oracle XML Developers Kit. in Oracle Corporation Oracle Database Server
Description
CVE-2026-83156 is a vulnerability in the Oracle XML Developers Kit component of Oracle Database Server affecting versions 19.3 through 19.32, 21.3 through 21.23, and 23.4.0 through 23.26.3. It allows a low privileged attacker with XDKC privilege and network access via Oracle Net to potentially take over the Oracle XML Developers Kit. The vulnerability is rated high severity with a CVSS 3.1 base score of 7.5, impacting confidentiality, integrity, and availability.
CVSS v3.1
Score 7.5high
Affected software
Oracle Corporation
Oracle Database Server
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Oracle XML Developers Kit enables an attacker with low privileges (XDKC) and network access through Oracle Net to compromise the component, potentially leading to full takeover. The CVSS 3.1 vector indicates network attack vector, high attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. Affected versions include Oracle Database Server 19.3-19.32, 21.3-21.23, and 23.4.0-23.26.3. Oracle has published this vulnerability as part of its September 2026 Critical Security Patch Update, which includes 673 security patches across multiple products.
Potential Impact
Successful exploitation can result in complete compromise of the Oracle XML Developers Kit component, affecting confidentiality, integrity, and availability of the system. The attacker requires network access and XDKC privilege, and the attack complexity is high. There are no known exploits in the wild at this time.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the September 2026 Critical Security Patch Update. Customers are strongly advised to apply the available patches promptly to affected versions. Oracle recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed as available via the official Oracle advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-31T15:40:57.343Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]
Threat ID: 6aa9a82355bf5e2cf5537dc8
Added to database: 09/15/2026, 20:18:43 UTC
Last enriched: 09/15/2026, 22:47:50 UTC
Last updated: 09/16/2026, 01:30:38 UTC
Views: 4
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