CVE-2026-48100

Payy is an Ethereum L2 zk-rollup for privacy preserving and regulatory compliant transactions. Prior to version 1.3.0, aggagg forwards the compacted message stream from its inner proofs into a public messages: Field; 1000 array, but it never checks that the unused tail of the outer array is zero....

CVE-2026-48100

Prior to version 1.3.0 , the Payy Ethereum L2 zk-rollup suffered from a circuit soundness failure in the agg_agg function. The system failed to verify that the unused tail of a public messages array was zero, allowing a registered prover to insert forged burn messages into a valid proof. This fla...