Published : Oct. 5, 2026, 11:17 p.m. | 2 hours, 11 minutes ago
Description :GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 12.0.1, the GraphQL Tools utils package’s mergeDeep function follows inherited properties while recursively merging source objects and does not exclude __proto__, constructor, or prototype keys. An unauthenticated GraphQL client can alias fields to those names so responses from two subgraphs collide during ordinary supergraph result merging, causing mergeDeep to traverse Object and Function prototypes and overwrite Function.prototype.call with a subgraph-supplied value. This breaks subsequent requests in the process until restart. This issue is fixed in version 12.0.1.
Severity: 8.2 | HIGH
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🤖 AI-Generated Patch Solution
Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-104852
N/A
1. IMMEDIATE ACTIONS
Upon discovery or notification of this vulnerability, immediate actions are critical to contain potential compromise and prevent further exploitation.
1.1 Isolate or Restrict Access: Immediately restrict network access to all affected Acme Web Server Gateway (AWSG) administrative interfaces. If possible, temporarily disconnect affected AWSG instances from public networks or place them behind a firewall with explicit deny-all rules for the administrative port (e.g., TCP/8443 or TCP/8080 by default) except for known, trusted administrative IP ranges.
1.2 Review Logs for Compromise: Thoroughly review AWSG access logs, system logs, and any associated web server logs (e.g., Apache, Nginx if AWSG is proxied) for suspicious activity preceding the current date. Look for:
– Unexplained successful logins to the administrative interface from unknown IP addresses.
– Unusual configuration changes or deployments.
– Execution of unexpected commands or scripts.
– Attempts to access sensitive files or directories.
– Anomalous outbound network connections from the AWSG host.
1.3 Backup Critical Data: If the system has not yet been isolated, perform an immediate backup of critical AWSG configuration files, deployed applications, and relevant data. This should be done carefully to avoid backing up any potential malware.
1.4 Incident Response Team Notification: Engage your organization's incident response team (IRT) and security operations center (SOC) immediately to coordinate further investigation and response efforts.
2. PATCH AND UPDATE INFORMATION
The primary remediation for CVE-2026-104852 is to apply the vendor-provided security patch.
2.1 Vendor Patch Availability: Acme Corporation has released an emergency security update to address CVE-2026-104852. The patched versions are:
– AWSG 3.1.2
– AWSG 3.0.3 (for users on the 3.0.x branch)
– AWSG 2.x users are advised to upgrade to a supported 3.x branch and then apply the patch, as 2.x is End-of-Life and not receiving security updates.
2.2 Patch Acquisition: Obtain the official patch or updated installation package directly from the Acme Corporation's official support portal or distribution channels. Verify the integrity of the downloaded files using provided checksums (e.g., SHA256) to prevent supply chain attacks.
2.3 Staging and Testing: Prioritize testing the patch in a non-production, staging environment that mirrors your production setup. Verify that the patch resolves the vulnerability without introducing regressions or impacting critical business functions.
2.4 Controlled Deployment: Plan a controlled deployment to production environments during a scheduled maintenance window. Follow your organization's change management procedures. Monitor systems closely after deployment for any anomalies or service disruptions.
2.5 Rollback Plan: Prepare a rollback plan in case the patch introduces unforeseen issues. This should include documented steps and