cvedb.io
CVE-2026-46403
MEDIUM · CVSS 6.3
EPSS exploitation probability: 0%
Published 2026-07-21T20:17:01.067 · Last modified 2026-07-21T20:17:01.067

Summary

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes `ExecuteReadOnlyWithTypedArguments` as a read-only execution mechanism. The hook saves the previous read-only state, sets `runtime.SetReadOnly(true)`, executes the destination context, and then restores the previous read-only state. However, the indirect contract delete and upgrade paths do not reject execution when `runtime.ReadOnly()` is true. As a result, a contract reached through read-only execution can call the production delete hook for a target contract it owns. The delete path appends the target address to `vmOutput.DeletedAccounts`, the output context merges `DeletedAccounts` into the caller output, and the smart contract processor later processes the VM output by deleting accounts

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.