CVE-2023-26557 | BDVDB-2026-200729 Detail

Description#

io.finnet tss-lib before 2.0.0 can leak the lambda value of a private key via a timing side-channel attack because it relies on Go big.Int, which is not constant time for Cmp, modular exponentiation, or modular inverse. An example leak is in crypto/paillier/paillier.go. (bnb-chain/tss-lib and thorchain/tss are also affected.)

Impact#

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Exploit#

History#

1. Version 12023-04-21Record published in the CVE List.
2. Version 22025-02-05Most recent update recorded in the CVE List.