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

Datadog Security Labs
Datadog Security Labs
Published May 28, 2026Original Report

Excerpt

CVE-2026-31431 (Copy Fail) lets any unprivileged user corrupt the Linux page cache via AF_ALG sockets to escalate privileges. This post covers the exploit mechanics and how Datadog Security Research used coding agents to ship a detection content pack in a single session.

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Indicators of Compromise

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1 indicators

TypeIndicatorConfidenceScoreFirst Seen
CVECVE-2026-31431HighScore 79/100First seen

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