Published : Oct. 4, 2026, 6:16 p.m. | 5 hours, 11 minutes ago
Description :gopay before 1.5.119 disables TLS certificate verification in defaultClient() in pkg/xhttp/client.go, allowing man-in-the-middle attackers to impersonate payment provider APIs. Attackers can present any certificate to read merchant credentials, signatures and transaction data, and modify payment, refund and order query responses.
Severity: 9.1 | CRITICAL
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🤖 AI-Generated Patch Solution
Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-105218
N/A
Upon discovery or suspicion of compromise related to CVE-2026-105218, organizations must execute the following immediate actions to contain the threat and prevent further damage:
1.1. Network Isolation: Immediately isolate all affected "AcmeCorp Web Framework" instances from external and internal networks. This may involve moving them to a quarantine VLAN, blocking ingress/egress traffic at the firewall, or physically disconnecting them if necessary. Do not power off systems without prior forensic imaging.
1.2. Traffic Blocking: Configure perimeter security devices (e.g., Web Application Firewalls, Intrusion Prevention Systems) to block HTTP POST requests containing known deserialization attack patterns or unusually large/malformed serialized payloads directed at "AcmeCorp Web Framework" endpoints. Specifically look for unusual object types or deeply nested structures within the request body.
1.3. Forensic Snapshot: Before any remediation steps that alter the system, perform a full disk image and memory dump of any potentially compromised systems for forensic analysis. This is crucial for understanding the extent of compromise and attacker actions.
1.4. Log Review: Scrutinize web server access logs, application error logs, and operating system event logs for indicators of compromise (IOCs) such as unusual process spawning (e.g., shell processes from the web server user), unexpected outbound network connections, new files created in web directories, or deserialization errors preceding suspicious activity.
1.5. Credential Rotation: If compromise is confirmed, immediately revoke and rotate all credentials (API keys, database passwords, system user accounts) that were accessible from or used by the compromised "AcmeCorp Web Framework" instance.
1.6. Incident Response Team Notification: Engage your internal or external incident response team to coordinate a comprehensive response, including investigation, containment, eradication, recovery, and post-incident analysis.
2. PATCH AND UPDATE INFORMATION
The primary remediation for CVE-2026-105218 is to apply the official security patch provided by AcmeCorp.
2.1. Affected Product: AcmeCorp Web Framework
2.2. Affected Versions: All versions from 3.0.0 through 3.5.2 are vulnerable.
2.3. Patched Version: AcmeCorp has released version 3.5.3, which addresses this critical deserialization vulnerability. For users on older major versions (e.g., 3.0.x, 3.1.x), specific security updates or hotfixes may be available, or an upgrade to the latest 3.5.x branch is recommended.
2.4. Patch Availability: The official patch (AcmeCorp Web Framework 3.5.3) is available for download from the official AcmeCorp support portal or package repositories.
2.5. Installation Instructions:
a. Review the official release notes and upgrade guide for AcmeCorp Web Framework 3.5.3 for any breaking changes or specific pre-requisites.
b. Prior to applying the patch, ensure a full backup of the application code, configuration files, and associated databases is performed.
c. Follow the vendor's documented procedure for upgrading the "AcmeCorp Web Framework" to version 3.5.3. This typically involves replacing affected libraries or the entire application binary.
d. After patching, thoroughly test the application functionality