CVE-2026-97031: CVE-2026-97031 - Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted
Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. This is a high threat mapped to CVE-2026-97031; security leaders should validate exposure, prio...
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SecOps Recommended Triage Checklist
- 01.Scope & Asset Discovery: Query vulnerability scanners (e.g. Tenable) and software bill of materials (SBOM) to pinpoint affected packages and services.
- 02.Vendor Patch Application: Prioritize deployment of official security patches released by upstream vendors.
- 03.Compensating Defense Controls: If patch cannot be applied immediately, enforce strict firewall/WAF boundaries and isolate target instances.
- 04.Endpoint Behavioral Monitoring: Audit telemetry via EDR (e.g. CrowdStrike) for abnormal child processes or privilege escalation attempts.
🛠️ SecOps Rapid Incident & Triage Tools for CVE-2026-97031
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