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Index/Topics/Wallet2 Library Vulnerability 2023

Wallet2 Library Vulnerability 2023

A vulnerability in the wallet2 library that altered the decoy selection pattern, making some inputs' rings distinguishable.

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Jan 31, 2026
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What specific wallet bugs and user behaviors have historically leaked Monero transaction metadata?

A small set of concrete wallet implementation bugs — most notably the May 23, 2023 “10-block decoy” vulnerability in the widely used — together with predictable user behaviors have repeatedly leaked s...

Feb 1, 2026

What technical details and fixes were implemented after the May 23, 2023 Monero wallet2 decoy bug disclosure?

The May 23, 2023 disclosure described a high-severity "" bug in that made transactions spending outputs exactly 10 blocks old reveal the real input more often than intended; the core fix shipped in Mo...