CVE-2024-38533: ZKsync Era invalid stack addressing conversion

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-06-28 · updated 2026-06-17
Weakness: CWE-787

Description

ZKsync Era is a layer 2 rollup that uses zero-knowledge proofs to scale Ethereum. There is possible invalid stack access due to the addresses used to access the stack not properly being converted to cells. This issue has been patched in version 1.5.0.

Affected products

matter-labs era-compiler-vyper: before 1.5.0 — fixed in 1.5.0

How to fix

Upgrade to a fixed version: matter-labs era-compiler-vyper 1.5.0. Check the vendor advisory for mitigations.

References

https://github.com/matter-labs/era-compiler-vyper/security/advisories/GHSA-q7pg-6jh9-87gv
https://github.com/matter-labs/era-compiler-vyper/security/advisories/GHSA-q7pg-6jh9-87gv

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