Solana fixes zero-day vulnerability that could have led to unlimited issuance or theft of some tokens

The Solana Foundation has announced that a critical "zero-day" vulnerability affecting the confidential transfer function on its network has been successfully fixed. The vulnerability was discovered on April 16, and the Foundation immediately secretly organized validators to coordinate network updates and completed the repair work within two days. The vulnerability involves the ZK proof system used to verify the confidential transfer of Token-2022 standard tokens. If exploited, attackers can theoretically mint specific tokens indefinitely through forged certificates, or steal these tokens from user accounts. The Solana Foundation said that the vulnerability was not disclosed until the repair was completed to ensure security. There is currently no evidence that the vulnerability was actually exploited, and all user funds are safe. It also pointed out that although the confidential transfer function has been online for some time, the current adoption rate is not high.