capital · May 20, 2026
E2B Sandboxes Not Affected by Copy Fail CVE-2026-31431
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E2B Head of Engineering Tomas Srnka stated on April 30, 2026 that E2B sandboxes remain unaffected by the Copy Fail CVE-2026-31431 vulnerability impacting Linux systems since 2017. The post details how E2B's purpose-built containers for AI agents avoid the root deterministic issue present in standard setups. E2B continues to provide secure sandboxes for untrusted code execution used by Perplexity and Manus. E2B raised $21M Series A in July 2025 led by Insight Partners.
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