CRITICAL CVSS 9.8
Published: 2026-03-31

CVE-2026-30276

deftpdf document_translator Security Advisory (CVE-2026-30276)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-30276 impacting deftpdf document_translator. Evaluated with CVSS Base Score of 9.8 (CRITICAL).

Original NVD Description

Source: NIST NVD
An arbitrary file overwrite vulnerability in DeftPDF Document Translator v54.0 allows attackers to overwrite critical internal files via the file import process, leading to arbitrary code execution or information exposure.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
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 deftpdf / document_translator
Affected Versions 54.0
Weakness Enumeration CWE-73

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-2026-30276 impacting deftpdf document_translator.

⚡ Nuclei Detection Template (YAML) cve-2026-30276.yaml
id: cve-2026-30276

info:
  name: deftpdf document_translator - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: critical
  description: |
    Automated signature & scanner for CVE-2026-30276 affecting deftpdf document_translator.
    Evaluation: An arbitrary file overwrite vulnerability in DeftPDF Document Translator v54.0 allows attackers to overwrite critical internal files via the file impo...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-30276
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2026-30276
    cwe-id: CWE-73
  tags: cve,cve-2026-30276,deftpdf,document_translator,critical

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "document_translator"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-30276.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-30276
# Target: deftpdf document_translator | CVSS: 9.8 (CRITICAL)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-30276 (deftpdf document_translator)...")
    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 deftpdf document_translator scope (54.0).")
        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-2026-30276.sh
# Recommended Remediation & Patching Commands for CVE-2026-30276
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install document_translator 2>/dev/null || \
sudo dnf upgrade document_translator 2>/dev/null || \
sudo yum update document_translator

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

# 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-2026-30276 in deftpdf document_translator?

Review vendor-specific security notices and update deftpdf document_translator 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-2026-30276?

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-2026-30276?

CVE-2026-30276 is classified with a CVSS 3.1 Base Score of 9.8 (CRITICAL). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
9.8
CRITICAL SEVERITY
CVE ID CVE-2026-30276
Weakness CWE-73
Vendor deftpdf
Product document_translator
Published 2026-03-31
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H