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From Exploit Code to Production Detection: Building a CVE-2026-31431 (Copy Fail) detection with Agents

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Copy frozen at (site build).

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From Exploit Code to Production Detection: Building a CVE-2026-31431 (Copy Fail) detection with Agents

CVE-2026-31431 (Copy Fail) is a privilege escalation vulnerability in Linux that allows unprivileged users to corrupt the page cache through AF_ALG sockets. Datadog Security Research describes the exploit mechanics and demonstrates how coding agents accelerated the development and delivery of detection content for this issue.

Why it matters: All Linux users are exposed to local privilege escalation through this actively exploited flaw on the known exploited vulnerabilities list; detection logic is now available to identify exploitation attempts.

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