EIP-8038 modifies the gas costs associated with accessing and modifying existing blockchain state.

From the articleEthereum Glamsterdam Delay: ChainSecurity Flags 13 Contracts Where Failures Turn PermanentAlso in Ethereum Delays Glamsterdam Upgrade After Security Researchers Flag Risks, Ethereum Delays Oct 26 Glamsterdam Hoodi Upgrade Over Security Risks, Ethereum Delays Glamsterdam Testnet Fork Over Gas Security Flaws - Decrypt, Ethereum's long-awaited Glamsterdam upgrade hits another roadblock as 13 security risks emerge, Ethereum Delays Glamsterdam Testing After 13 Contracts Trigger Concerns