GitHub 'Verified' Commits Can Be Rewritten Into New Hashes Without Breaking Signatures
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New research shows that a signed Git commit's hash is not the one-of-a-kind name that much of the software world assumes it to be. Given any signed commit, someone without the signing key can mint a second commit with the same files, author, and date, and a valid signature, GitHub still stamps "Verified." Everything a reviewer would check matches. The commit's hash does not. That matters
1Key Takeaways
- New research shows that a signed Git commit's hash is not the one-of-a-kind name that much of the software world assumes it to be.
- Given any signed commit, someone without the signing key can mint a second commit with the same files, author, and date, and a valid signature, GitHub still stamps "Verified." Everything a reviewer would check matches.
2AIWedia Score
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3Why it matters
Research breakthroughs often arrive in products months later—early signals matter for strategy. The Hacker News reports that new research shows that a signed Git commit's hash is not the one-of-a-kind name that much of the software world assumes it to be.
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