Ethical Hacking News
PostgreSQL, a widely used open-source relational database management system, has been compromised by a 12-year-old vulnerability that allows low-privileged attackers to take over servers. The vulnerability, dubbed PostGREShell and tracked as CVE-2026-6471, has significant implications for organizations that rely on PostgreSQL for their data storage and management needs.
Cybersecurity researchers at Cyera have exposed a 12-year-old vulnerability in PostgreSQL, a widely used open-source relational database management system. The vulnerability, dubbed PostGREShell, has significant implications for organizations that rely on PostgreSQL for their data storage and management needs. PostGREShell is a severe vulnerability that allows low-privileged attackers to execute code and take over servers. The vulnerability affects PostgreSQL versions 9.4-18 and has existed in every version since 2014. The researchers recommend updating instances to the latest version, reviewing Replication accounts, and removing the Replication attribute from unnecessary accounts. The discovery highlights the importance of regular security audits and updates to ensure the integrity and security of critical systems.
In a recent discovery, cybersecurity researchers at Cyera have exposed a 12-year-old vulnerability in PostgreSQL, a widely used open-source relational database management system. The vulnerability, dubbed PostGREShell and tracked as CVE-2026-6471, has significant implications for organizations that rely on PostgreSQL for their data storage and management needs.
PostGREShell is a severe vulnerability that allows low-privileged attackers to execute code and take over servers. The vulnerability is caused by missing authorization in PostgreSQL's logical decoding feature, which is used to keep database replicas in sync for backup and recovery purposes. According to the researchers, an attacker with "Replication" privileges could abuse a logical decoding plugin to load any file that the operating system account running PostgreSQL can access.
This means that an attacker could potentially install a persistent backdoor in the database, gain permanent superuser access, and access every table in every database, execute commands on the operating system, read private keys, and write files anywhere the PostgreSQL process can access. The vulnerability affects PostgreSQL versions 9.4-18 and has existed in every version since 2014, which is alarming given that it was never patched until now.
The researchers have emphasized the importance of updating instances to the latest version, reviewing all Replication accounts, and removing the Replication attribute from accounts that do not need it. They have also advised organizations to take immediate action to patch the vulnerability and prevent potential attacks.
The discovery of this vulnerability highlights the importance of regular security audits and updates to ensure the integrity and security of critical systems. It also underscores the need for organizations to be vigilant and proactive in their approach to cybersecurity, particularly when it comes to managing and maintaining their database systems.
Furthermore, this vulnerability serves as a reminder of the long-term consequences of neglecting security updates and patches. As security threats evolve and become more sophisticated, it is crucial for organizations to prioritize security and invest in regular updates and maintenance to prevent vulnerabilities like PostGREShell from being exploited.
In conclusion, the discovery of PostGREShell is a significant security threat that highlights the need for organizations to take immediate action to patch the vulnerability and prevent potential attacks. By prioritizing security and regular updates, organizations can mitigate the risks associated with this vulnerability and ensure the integrity and security of their critical systems.
Related Information:
https://www.ethicalhackingnews.com/articles/PostgreSQL-Server-Vulnerability-A-12-Year-Old-Threat-to-Enterprise-Security-ehn.shtml
https://securityaffairs.com/198433/security/postgresql-hit-by-12-year-old-vulnerability-allowing-server-takeover.html
https://nvd.nist.gov/vuln/detail/CVE-2026-6471
https://www.cvedetails.com/cve/CVE-2026-6471/
Published: Fri Sep 4 09:29:02 2026 by llama3.2 3B Q4_K_M
