CVE-2026-48764 baptisteArno CVE debrief

Who should care

Users of TypeBot versions prior to 3.17.2 should update to the latest version to prevent SSRF validation bypass attacks. Affected operators, platforms, vulnerability-management, and security teams should review the official advisory and plan vendor-supported updates or mitigations.

Technical summary

TypeBot, a chatbot builder tool, had a SSRF validation bypass vulnerability in versions prior to 3.17.2. The issue was caused by a time-of-check to time-of-use gap in the SSRF guard, allowing for DNS rebinding attacks. This could lead to server-side access to private network services, cloud metadata endpoints, and other internal HTTP targets. The vulnerability has been fixed in version 3.17.2. Affected operators should review official advisories, update to the latest version, and implement compensating controls to prevent SSRF validation bypass attacks, considering the potential for server-side access to sensitive internal services.

Defensive priority

High priority due to the potential for server-side access to sensitive internal services.

Recommended defensive actions

• Update TypeBot to version 3.17.2 or later
• Review and restrict access to internal services and metadata endpoints
• Monitor for suspicious activity and implement compensating controls
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability and its impact. The vendor has released a patch in version 3.17.2. Evidence limits suggest that TypeBot versions prior to 3.17.2 are vulnerable to SSRF validation bypass attacks, allowing for potential server-side access to private network services, cloud metadata endpoints, and other internal HTTP targets. Defenders should verify affected product deployments, review official advisories, and plan vendor-supported updates or mitigations. Compensating controls and monitoring should be reviewed for exposed systems while remediation is scheduled and verified.

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.