CVE-2026-76240 eidetic-labs CVE debrief

Who should care

Defenders and developers using stigmem-node 0.9.0a1, especially those with tenant or user-controlled schema names, should assess exposure and prioritize remediation. They should review relevant monitoring, detection, and logs for exposed assets that need extra review and track exceptions, retest remediated assets, and close the item only after evidence is documented.

Why it matters

CVE-2026-76240 is a SQL injection vulnerability in stigmem-node 0.9.0a1 that allows for potential code execution if schema names are derived from untrusted input. Defenders should prioritize verification of exposure and remediation, especially in deployments using tenant or user-controlled schema names.

• Potential SQL injection and code execution
• Verification of exposure and remediation priority
• Monitoring for suspicious SQL queries
• Implementation of compensating controls

Technical summary

The stigmem-node package 0.9.0a1 interpolates Postgres backend schema identifiers into SQL strings without defensive quoting, allowing for potential SQL injection if schema names are derived from untrusted input. The fixed version 0.9.0a2 or later adds identifier quoting and validation. Defenders should prioritize verification of exposure and remediation, especially in deployments using tenant or user-controlled schema names. Compensating controls such as Web Application Firewalls may be necessary, and monitoring for suspicious SQL queries is recommended.

Defensive priority

Defenders should prioritize verification of exposure and remediation, especially in deployments using tenant or user-controlled schema names.

Recommended defensive actions

• Verify if schema names are derived from tenant, request, or user input and assess exposure
• Apply the fixed version 0.9.0a2 or later
• Implement compensating controls such as Web Application Firewalls
• Monitor for suspicious SQL queries
• Review relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but actual exploitation and impact require further verification. The vulnerability is due to unsafe schema identifier interpolation in stigmem-node 0.9.0a1. Defenders should verify if schema names are derived from tenant, request, or user input and assess exposure. The fixed version 0.9.0a2 or later should be applied, and compensating controls such as Web Application Firewalls should be implemented. Monitoring for suspicious SQL queries is also recommended.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.