CVE-2026-34654

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 a Dependency on Vulnerable Third-Party Component vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.

CVSS Details

CVSS Score

5.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Adobe Commerce <= 2.4.4-p17

Adobe Commerce <= 2.4.5-p16

Adobe Commerce <= 2.4.6-p14

Adobe Commerce <= 2.4.7-p9

Adobe Commerce <= 2.4.8-p4

Adobe Commerce 2.4.9-beta1

PoC / Exploit Code

⚠ For Security Research Only

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

python

# PoC for CVE-2026-34654
# This script attempts to trigger the DoS vulnerability in Adobe Commerce
# by sending a crafted request to the vulnerable endpoint.

import requests

def trigger_dos(target_url):
    headers = {
        "User-Agent": "CVE-2026-34654-Scanner",
        "Content-Type": "application/json"
    }
    # Placeholder payload. The actual payload depends on the vulnerable 3rd party component.
    # Usually, this involves sending malformed data that crashes the dependency.
    payload = {
        "malicious_param": "crash_trigger_value" 
    }

    try:
        print(f"[*] Sending payload to {target_url}...")
        # The specific endpoint would need to be identified from the patch diff or advisory
        response = requests.post(f"{target_url}/vulnerable_endpoint", json=payload, headers=headers, timeout=5)
        print(f"[+] Response status: {response.status_code}")
    except requests.exceptions.RequestException as e:
        print(f"[-] Request failed or service crashed: {e}")

if __name__ == "__main__":
    target = "http://target-adobe-commerce-site.com"
    trigger_dos(target)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-34654
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-34654
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-34654/
[4] VulDB https://vuldb.com/cve/CVE-2026-34654
[5] https://helpx.adobe.com/security/products/magento/apsb26-49.html

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-34654", "sourceIdentifier": "[email protected]", "published": "2026-05-12T20:16:36.500", "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 a Dependency on Vulnerable Third-Party Component vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a 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:L", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "references": [{"url": "https://helpx.adobe.com/security/products/magento/apsb26-49.html", "source": "[email protected]"}]}}