toctou
Safeguard articles tagged "toctou" — guides, analysis, and best practices for software supply chain and application security.
7 articles
Race Condition Vulnerabilities Explained
A race condition is a timing flaw where two operations that should happen in order overlap instead — enabling double-spends, TOCTOU bypasses, and kernel exploits.
Claw Chain: Four Chained CVEs Turn 245,000 OpenClaw Agents Into Backdoors (May 2026)
Cyera disclosed four chainable flaws in OpenClaw on May 15, 2026 that take an autonomous agent from prompt injection to credential theft, privilege escalation, and a persistent backdoor. Roughly 245,000 instances sit exposed on the internet.
TOCTOU (Time-of-check to time-of-use)
TOCTOU flaws let attackers swap a file or resource after it's validated but before it's used, turning a safe check into an exploitable race.
Time-of-check to time-of-use (TOCTOU) race condition vulnerabilities
TOCTOU race conditions let attackers swap a resource between a security check and its use. Real CVEs, exploit mechanics, and prevention patterns explained.
Race Conditions (TOCTOU) in Application Code
From Dirty COW to runc's CVE-2021-30465, TOCTOU race conditions keep slipping past code review. Here's why they're invisible to standard tooling — and how to catch them.
Race Condition Vulnerabilities in Web Applications
Race conditions in web applications lead to double-spending, privilege escalation, and data corruption. This guide covers the most common patterns, detection techniques, and practical defenses.
Temp File Race Conditions in Build Systems: The TOCTOU Problem
Build systems create and process temporary files constantly. Race conditions in temp file handling can be exploited to inject malicious content into builds.