MEDIUM CVSS 6.6
Published: 2026-05-27

CVE-2026-48916

jenkins ldap Security Advisory (CVE-2026-48916)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-48916 impacting jenkins ldap. Evaluated with CVSS Base Score of 6.6 (MEDIUM).

Original NVD Description

Source: NIST NVD
Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals.

📊 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
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 jenkins / ldap
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-2026-48916 impacting jenkins ldap.

⚡ Nuclei Detection Template (YAML) cve-2026-48916.yaml
id: cve-2026-48916

info:
  name: jenkins ldap - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-48916 affecting jenkins ldap.
    Evaluation: Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals....
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-48916
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 6.6
    cve-id: CVE-2026-48916
    cwe-id: CWE-918
  tags: cve,cve-2026-48916,jenkins,ldap,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "ldap"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-48916.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-48916
# Target: jenkins ldap | CVSS: 6.6 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-48916 (jenkins ldap)...")
    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 jenkins ldap 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-2026-48916.sh
# Recommended Remediation & Patching Commands for CVE-2026-48916
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install ldap 2>/dev/null || \
sudo dnf upgrade ldap 2>/dev/null || \
sudo yum update ldap

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

# 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-2026-48916 in jenkins ldap?

Review vendor-specific security notices and update jenkins ldap 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-2026-48916?

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-2026-48916?

CVE-2026-48916 is classified with a CVSS 3.1 Base Score of 6.6 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.6
MEDIUM SEVERITY
CVE ID CVE-2026-48916
Weakness CWE-918
Vendor jenkins
Product ldap
Published 2026-05-27
Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H