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linux / vulnerabilities / Security / Copy Fail

Copy Fail exploitation has begun, and Brian Pak is sorry for the chaos

"The current coordination model really needs to be improved..."

By Edward Targett

Updated May 5, 2026 12:13 PM / Published May 4, 2026 10:14 AM 4 min read

Copy Fail exploitation has begun, and Brian Pak is sorry for the chaos — Image credit: https://unsplash.com/@eventidedesignco

CISA has added CVE-2026-31431, aka Copy Fail, to its known exploited catalogue (KEV), days after the wave-making Linux vulnerability went public.

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Edward Targett

Ed is a co-founder of The Stack. He previously edited Computer Business Review. He has also covered energy markets. He started his journalism career on local papers. He left school at 15 and has made a living asking "but why?" ever since.