Full Report
PostgreSQL security advisory (AV26-470)
Analysis Summary
# Vulnerability: Multiple Vulnerabilities in PostgreSQL Database Server
## CVE Details
- **CVE ID:** Not explicitly specified in the advisory summary (Generic Advisory AV26-470).
- **CVSS Score:** N/A (Refer to specific CVEs linked in vendor security page).
- **CWE:** Typically involves memory safety, permission bypass, or injection (refer to vendor documentation).
## Affected Systems
- **Products:** PostgreSQL Database Server
- **Versions:**
- 14.x versions prior to 14.23
- 15.x versions prior to 15.18
- 16.x versions prior to 16.14
- 17.x versions prior to 17.10
- 18.x versions prior to 18.4
- **Configurations:** Standard installations of the database engine within the specified version ranges.
## Vulnerability Description
While the specific technical flaws are detailed in individual CVEs associated with the May 2026 release cycle, these updates typically address issues related to:
1. Information disclosure via specialized queries.
2. Privilege escalation through specifically crafted object definitions.
3. Potential for Denial of Service (DoS) through resource exhaustion or backend crashes.
## Exploitation
- **Status:** Not reported as exploited in the wild at the time of advisory publication.
- **Complexity:** Varies (typically Low to Medium for authenticated users).
- **Attack Vector:** Network (Authenticated)
## Impact
- **Confidentiality:** Variable (depends on specific CVE)
- **Integrity:** Variable (depends on specific CVE)
- **Availability:** Variable (Potential for service disruption)
## Remediation
### Patches
The Canadian Centre for Cyber Security recommends upgrading to the following patched versions:
- **PostgreSQL 14.23**
- **PostgreSQL 15.18**
- **PostgreSQL 16.14**
- **PostgreSQL 17.10**
- **PostgreSQL 18.4**
### Workarounds
- No specific workarounds are provided; standard security hardening (least privilege access and network segmentation) is recommended until patches can be applied.
## Detection
- **Indicators of Compromise:** Monitor database logs for unusual connection patterns, unauthorized attempts to access system catalogs, or frequent backend crashes.
- **Detection methods and tools:** Use vulnerability scanners to identify outdated PostgreSQL binaries.
## References
- **Vendor Advisory:** hxxps[://]www[.]postgresql[.]org/support/security/
- **CCCS Advisory:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/postgresql-security-advisory-av26-470