CVE-2025-1094 describes a high-severity vulnerability in PostgreSQL that allows for SQL injection through improper neutralization of quoting syntax in several libpq functions. This vulnerability affects versions prior to PostgreSQL 17.3, 16.7, 15.11, 14.16, and 13.19. The attack vector is network-based, allowing potential attackers to exploit this vulnerability remotely.
The vulnerability allows a database input provider to achieve SQL injection in certain usage patterns, specifically when using the function result to construct input to psql, the PostgreSQL interactive terminal. This behavior can lead to unauthorized access to sensitive data.
Given the high CVSS score of 8.1, organizations should prioritize patching immediately. The risk to organizations includes potential data breaches and unauthorized access to database functions. This vulnerability is particularly concerning due to its exploitability and the existence of public proof-of-concept (PoC) code.
As the vulnerability has been confirmed to have exploit availability, organizations must act swiftly to mitigate this risk. The urgency for defenders cannot be overstated.
Vulnerability Details
The official description of CVE-2025-1094 highlights improper neutralization of quoting syntax in PostgreSQL libpq functions PQescapeLiteral(), PQescapeIdentifier(), PQescapeString(), and PQescapeStringConn(). This vulnerability can lead to SQL injection if the application uses the function result improperly.
The CWE classification for this vulnerability is CWE-149, which refers to improper neutralization of input during web page generation. This vulnerability has a CVSS score of 8.1, indicating high severity, with significant impacts on confidentiality, integrity, and availability.
Technical Analysis
The root cause of this vulnerability lies in the insufficient validation of input by the affected PostgreSQL functions. The attack vector is network-based, with a high attack complexity due to the requirement for specific encoding conditions (client_encoding as BIG5 and server_encoding as EUC_TW or MULE_INTERNAL). No privileges are required for exploitation, and user interaction is not necessary.
Exploitation could lead to a high confidentiality, integrity, and availability impact on the affected systems, as attackers may execute arbitrary SQL commands.
Risk & Impact Analysis
The real-world deployment risk of CVE-2025-1094 is significant, particularly for organizations relying on PostgreSQL for critical operations. Exploitation of this vulnerability can lead to severe data breaches, unauthorized access, and compliance violations.
Given the high CVSS score and the presence of public exploit code, organizations must assess their exposure and take immediate action to patch vulnerable systems. Organizations should also consider the potential blast radius of an exploit, as the vulnerability can affect multiple components.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects all versions prior to PostgreSQL 17.3, 16.7, 15.11, 14.16, and 13.19.
Mitigation & Remediation
Organizations should prioritize patching immediately. Upgrade to the latest versions of PostgreSQL to mitigate this vulnerability. If upgrading is not feasible, consider implementing input validation and sanitization measures to minimize risk. Configuration hardening and network controls can also be employed to limit exposure.
For detailed guidance on securing your PostgreSQL deployment, organizations may refer to the application security assessment services that help identify and mitigate vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual database activity and potential SQL injection attempts. Behavioral anomalies, such as unexpected queries and changes in access patterns, should also be investigated. Network signatures can help in detecting exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-1094 lies in its representation of a common class of SQL injection vulnerabilities that arise from improper input handling. Security teams should prioritize comprehensive input validation in their application development processes.
This vulnerability highlights the need for continuous security testing, such as continuous penetration testing, to uncover weaknesses before they can be exploited.
Furthermore, the incident emphasizes the importance of maintaining a robust vulnerability management program to ensure timely identification and remediation of security flaws.
Conclusion
CVE-2025-1094 is a critical vulnerability for PostgreSQL users that requires immediate attention. By implementing the recommended mitigations and enhancing security practices, organizations can protect themselves from potential exploitation.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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