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CVE-2026-62282 represents a significant security flaw involving Server-Side Request Forgery within OpenCVE notification testing mechanisms.
The vulnerability is triggered when an authenticated user supplies a malicious or internal target URL during webhook configuration tests.
The backend server accepts the unvalidated endpoint and immediately initiates an outbound HTTP or HTTPS connection.
Because input filters fail to inspect destination IP addresses, requests can target internal network infrastructure successfully.
This includes loopback addresses like 127.0.0.1, private subnet ranges, and cloud provider metadata endpoints.
Attackers leverage this behavior to probe internal ports, interact with backend services, and bypass perimeter firewalls.
Sensitive information such as environment variables, internal tokens, and metadata credentials can be retrieved remotely.
The vulnerability originates from the notification testing feature handling Slack and Webhook integrations insecurely.
Code execution routines blindly trust user input without enforcing strict protocol or IP address restrictions.
Mitigation involves upgrading the application to version 3.0.0 or higher where URL validation rules are strictly enforced.
System administrators can also apply network egress filtering to restrict outbound traffic from the application server.
DailyCVE Form:
Platform: OpenCVE application
Version: Below 3.0.0
Vulnerability: SSRF request flaw
Severity: Medium score risk
date: September 2026
Prediction: Already patched version
What Undercode Say:
pip install --upgrade opencve==3.0.0
grep -rn "webhook" /etc/opencve/
curl -X POST http://localhost:8000/api/notifications/test -d '{"url":"http://169.254.169.254/latest/meta-data/"}'
Exploit: (Educational Purposes!)
An attacker with basic authenticated access navigates to the notification configuration panel within the OpenCVE dashboard.
They input a targeted internal URL, such as a cloud provider metadata service address or an internal microservice endpoint.
By triggering the test notification feature, the server initiates an outbound network request targeting the specified internal resource.
The response from the internal service is handled by the application logic, potentially leaking internal data back to the user interface or logs.
This bypasses network segmentation, allowing unauthorized interaction with non-routable private infrastructure.
Protection: from this CVE
Upgrade the OpenCVE package to version 3.0.0 or later immediately to incorporate built-in URL validation fixes.
Implement strict egress filtering and firewall rules on the application host to block connections to private and loopback IP ranges.
Disable the notification testing functionality or restrict channel configuration privileges exclusively to trusted administrative accounts.
Impact:
Successful exploitation allows unauthorized actors to scan internal network ports and access restricted microservices.
Exfiltration of cloud metadata credentials can lead to full compromise of underlying infrastructure and cloud environments.
Internal data leaks undermine the security boundaries established by enterprise network segmentation and firewalls.
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Sources:
Reported By: github.com
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