MEDIUM CVSS 6.4
Published: 2026-06-11

CVE-2026-11945

dalibo postgresql_anonymizer Security Advisory (CVE-2026-11945)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-11945 impacting dalibo postgresql_anonymizer. Evaluated with CVSS Base Score of 6.4 (MEDIUM).

Original NVD Description

Source: NIST NVD
PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a JSON document and placing malicious code inside a particular key-value pair. If a superuser calls the import_database_rules() or import_roles_rules() functions, the malicious code is executed with superuser privileges. The problem is resolved in PostgreSQL Anonymizer 3.1.1 and further versions

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
High (PR:H)
Administrative credentials required
User Interaction
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
High (I:H)
Total modification of target system
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product dalibo / postgresql_anonymizer
Affected Versions *
Weakness Enumeration CWE-89

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2026-11945 impacting dalibo postgresql_anonymizer.

⚡ Nuclei Detection Template (YAML) cve-2026-11945.yaml
id: cve-2026-11945

info:
  name: dalibo postgresql_anonymizer - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-11945 affecting dalibo postgresql_anonymizer.
    Evaluation: PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a JSON document and placing malicious code ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-11945
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
    cvss-score: 6.4
    cve-id: CVE-2026-11945
    cwe-id: CWE-89
  tags: cve,cve-2026-11945,dalibo,postgresql_anonymizer,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "postgresql_anonymizer"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-11945.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-11945
# Target: dalibo postgresql_anonymizer | CVSS: 6.4 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-11945 (dalibo postgresql_anonymizer)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against dalibo postgresql_anonymizer scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2026-11945.sh
# Recommended Remediation & Patching Commands for CVE-2026-11945
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install postgresql_anonymizer 2>/dev/null || \
sudo dnf upgrade postgresql_anonymizer 2>/dev/null || \
sudo yum update postgresql_anonymizer

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i postgresql_anonymizer 2>/dev/null || rpm -qa | grep -i postgresql_anonymizer

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Authorities
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Distributions
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❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-11945 in dalibo postgresql_anonymizer?

Review vendor-specific security notices and update dalibo postgresql_anonymizer packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2026-11945?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2026-11945?

CVE-2026-11945 is classified with a CVSS 3.1 Base Score of 6.4 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.4
MEDIUM SEVERITY
CVE ID CVE-2026-11945
Weakness CWE-89
Vendor dalibo
Product postgresql_anonymizer
Published 2026-06-11
Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H