MEDIUM CVSS 6.3
Published: 2025-08-20

CVE-2024-39954

apache eventmesh Security Advisory (CVE-2024-39954)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2024-39954 impacting apache eventmesh. Evaluated with CVSS Base Score of 6.3 (MEDIUM).

Original NVD Description

Source: NIST NVD
CWE-918 Server-Side Request Forgery (SSRF) in eventmesh-runtime module in WebhookUtil.java on windows\linux\mac os e.g. allows the attacker can abuse functionality on the server to read or update internal resources. Users are recommended to upgrade to version 1.12.0 or use the master branch , which fixes this issue.

📊 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
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product apache / eventmesh
Affected Versions *
Weakness Enumeration CWE-918

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-2024-39954 impacting apache eventmesh.

⚡ Nuclei Detection Template (YAML) cve-2024-39954.yaml
id: cve-2024-39954

info:
  name: apache eventmesh - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2024-39954 affecting apache eventmesh.
    Evaluation: CWE-918 Server-Side Request Forgery (SSRF) in eventmesh-runtime module in WebhookUtil.java on windows\linux\mac os e.g. allows the attacker can abuse ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2024-39954
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
    cvss-score: 6.3
    cve-id: CVE-2024-39954
    cwe-id: CWE-918
  tags: cve,cve-2024-39954,apache,eventmesh,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "eventmesh"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2024-39954.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2024-39954
# Target: apache eventmesh | CVSS: 6.3 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2024-39954 (apache eventmesh)...")
    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 apache eventmesh 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-2024-39954.sh
# Recommended Remediation & Patching Commands for CVE-2024-39954
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install eventmesh 2>/dev/null || \
sudo dnf upgrade eventmesh 2>/dev/null || \
sudo yum update eventmesh

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

# 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
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2024-39954 in apache eventmesh?

Review vendor-specific security notices and update apache eventmesh 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-2024-39954?

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-2024-39954?

CVE-2024-39954 is classified with a CVSS 3.1 Base Score of 6.3 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.3
MEDIUM SEVERITY
CVE ID CVE-2024-39954
Weakness CWE-918
Vendor apache
Product eventmesh
Published 2025-08-20
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L