CVE-2026-32129

soroban-poseidon provides Poseidon and Poseidon2 cryptographic hash functions for Soroban smart contracts. Poseidon V1 PoseidonSponge accepts variable-length inputs without injective padding. When a caller provides fewer inputs than the sponge rate inputs.len k, hashm1, ..., mk equals hashm1, ......

EUVD-2026-11645

Poseidon V1 variable-length input collision via implicit zero-padding...

GHSA-G2P6-HH5V-7HFM Poseidon V1 variable-length input collision via implicit zero-padding

Impact Poseidon V1 PoseidonSponge accepts variable-length inputs without injective padding. When a caller provides fewer inputs than the sponge rate inputs.len k, hashm1, ..., mk equals hashm1, ..., mk, 0 because both produce identical pre-permutation states. This affects any use of PoseidonSpong...

CVE-2026-32129

soroban-poseidon provides Poseidon and Poseidon2 cryptographic hash functions for Soroban smart contracts. Poseidon V1 PoseidonSponge accepts variable-length inputs without injective padding. When a caller provides fewer inputs than the sponge rate inputs.len k, hashm1, ..., mk equals hashm1, ......

CVE-2026-32129

soroban-poseidon provides Poseidon and Poseidon2 cryptographic hash functions for Soroban smart contracts. Poseidon V1 PoseidonSponge accepts variable-length inputs without injective padding. When a caller provides fewer inputs than the sponge rate inputs.len k, hashm1, ..., mk equals hashm1, ......

PT-2026-25033

soroban-poseidon provides Poseidon and Poseidon2 cryptographic hash functions for Soroban smart contracts. Poseidon V1 PoseidonSponge accepts variable-length inputs without injective padding. When a caller provides fewer inputs than the sponge rate inputs.len k, hashm1, ..., mk equals hashm1, ......