CVE-2026-2360 is a high-severity vulnerability in PostgreSQL Anonymizer that enables an attacker to gain superuser privileges. This vulnerability allows a user to create a custom operator in the public schema and insert malicious code within that operator. When the extension is created, this operator executes with superuser privileges. The issue is particularly critical for instances running PostgreSQL 14 or those upgraded from earlier versions.
The risk associated with this vulnerability is significantly reduced in PostgreSQL 15 and later versions, where the default settings revoke the creation permission on the public schema. However, if a superuser adds a new schema to their search_path and grants the CREATE privilege to untrusted users, the exploit can still occur, as discouraged by PostgreSQL documentation.
Organizations should prioritize patching immediately, as the problem is resolved in PostgreSQL Anonymizer version 3.0.1 and later. Failure to address this vulnerability can lead to unauthorized superuser access, posing severe risks to data confidentiality, integrity, and availability.
The CVSS score for this vulnerability is 8, indicating a high level of severity. The exploitability is classified as high, and it is essential for organizations to understand the implications of this vulnerability in their operational environments.
Vulnerability Details
The vulnerability allows users to gain superuser privileges through the creation of a malicious operator in the public schema. The official description states that this operator executes with superuser privileges upon extension creation. The vector for this attack is through a network, requiring high privileges and no user interaction.
Technical Analysis
The root cause of this vulnerability stems from insufficient restrictions on the public schema in PostgreSQL 14, where malicious operators can be created. The attack vector is network-based, and the complexity is rated as high due to the requirement for high privileges. It does not require user interaction, making it easier for an attacker to exploit.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access to sensitive data, leading to data breaches or integrity violations. The blast radius of this vulnerability is significant, especially in environments where PostgreSQL 14 is in use or where superuser privileges are improperly managed.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to PostgreSQL Anonymizer 3.0.1 are affected by this vulnerability.
Mitigation & Remediation
To mitigate this vulnerability, organizations should upgrade to PostgreSQL Anonymizer version 3.0.1 or later. If upgrading is not immediately possible, it is recommended to review and restrict permissions associated with the public schema, ensuring that only trusted users are granted privileges.
Detection Guidance
Organizations should monitor logs for any suspicious activities related to the creation of custom operators and check for unauthorized permission changes in the public schema.
AppSecure Threat Intelligence Insight
This vulnerability represents a concerning trend in the manipulation of database permissions. Security teams should prioritize the implementation of strict access controls and regularly audit user privileges to mitigate risks associated with privilege escalation vulnerabilities.
For additional resources on improving your security posture, consider reviewing our guidance on vulnerability management programs and explore our penetration testing methodology for enhancing your security assessments.
Lastly, consider the implications of adopting a proactive continuous penetration testing strategy to stay ahead of potential threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)