CVE-2026-46403 Klever-Go KVM read-only execution can commit contract delete and upgrade side effects

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.SetReadOnlytrue, executes the destination context, and then restores t...

CVE-2026-46403 Klever-Go KVM read-only execution can commit contract delete and upgrade side effects

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.SetReadOnlytrue, executes the destination context, and then restores t...

CVE-2026-46403

Summary (verified): Klever-Go KVM read-only execution can leak state changes via contract delete/upgrade side effects when invoked through ExecuteReadOnlyWithTypedArguments. The root cause is applying read-only as runtime state while not enforcing it in state-changing host-core paths, allowing a ...

GO-2026-5461 Klever-Go KVM read-only execution can commit contract delete and upgrade side effects in github.com/klever-io/klever-go

Klever-Go KVM read-only execution can commit contract delete and upgrade side effects in github.com/klever-io/klever-go...

Protection Mechanism Failure

Overview Affected versions of this package are vulnerable to Protection Mechanism Failure through the ExecuteReadOnlyWithTypedArguments process. An attacker can cause unauthorized contract deletion or upgrade operations by invoking state-changing actions during read-only execution, thereby...

GHSA-JC6W-WMFC-FH33 Klever-Go KVM read-only execution can commit contract delete and upgrade side effects

Publisher note Fixed in v1.7.17. Operators running v1.7.17 should upgrade. Contract delete and upgrade host-core paths now reject execution when runtime.ReadOnly is true. The invariant is regression-tested for delete, upgrade, storage writes, value transfers, and any VM output field that can late...

Klever-Go KVM read-only execution can commit contract delete and upgrade side effects

Publisher note Fixed in v1.7.17. Operators running v1.7.17 should upgrade. Contract delete and upgrade host-core paths now reject execution when runtime.ReadOnly is true. The invariant is regression-tested for delete, upgrade, storage writes, value transfers, and any VM output field that can late...

EUVD-2023-50471

Malicious code in bioql PyPI...

CVE-2023-46232

The CVE concerns era-compiler-vyper (EraVM Vyper compiler for zkSync Era). Before 1.3.10, a bug in initialization of the first immutable variable for Vyper contracts could occur when a String or Array allocates more 256‑bit words than are initialized; the second word’s index could be left unset (...

Contract data cannot be migrated to the new address during contract upgrading.

Lines of code Vulnerability details Impact According to this document, the AddressProvider contract manages and updates addresses of authorized contracts and registries within the system. If security vulnerabilities are discovered or functional upgrades are needed in a contract, the government ca...

CVE-2023-34234 Governor proposal creation may be blocked by frontrunning in OpenZeppelin

OpenZeppelin Contracts is a library for smart contract development. By frontrunning the creation of a proposal, an attacker can become the proposer and gain the ability to cancel it. The attacker can do this repeatedly to try to prevent a proposal from being proposed at all. This impacts the...

Upgraded Q -> 2 from #615 [1675442567749]

Judge has assessed an item in Issue 615 as 2 risk. The relevant finding follows: 3:upgradeExistingContract need unregisterContract first and then registerContract. Avoid newAddr==existingAddr. unregisterContract remove newAddr function upgradeExistingContract address newAddr, string memory newNam...

Upgraded Q -> 2 from #846 [1675451731129]

Judge has assessed an item in Issue 846 as 2 risk. The relevant finding follows: L-2 no way to remove compromised/broken multisigs without upgrading the contract --- The text was updated successfully, but these errors were encountered: All reactions...

Potential DOS in Contract Inheriting UUPSUpgradeable.sol

Lines of code Vulnerability details Impact There is a contract which inherit UUPSUpgradeable.sol, namely; Managed.sol . The contract is deployed using a proxy pattern whereby the implementation contract is used by the proxy contract for all its logic. The proxy contract will make delegate calls t...

Proxy admin of DripsHub, AddressDriver, NFTDriver and ImmutableSplitsDriver can steal users' tokens by upgrading the contract

Lines of code Vulnerability details Impact Proxy admin of DripsHub, AddressDriver, NFTDriver and ImmutableSplitsDriver can perform different malicious actions through upgrading, all can lead to users' assets being stolen. Proof of Concept An upgradable proxy contract can be upgraded with arbitrar...

Attacker can steal money from the initializer function

Lines of code Vulnerability details Impact Your Using old openzeplin Verision which the initializer function is vulnerable to and an attacker can call it twice after it’s been initliazed and since it approves max tokens to those contract. Which then after it’s first initialization the attacker...

Critical uberOwner address changes should be a two-step process

Handle 0xRajeev Vulnerability details Impact As specified, uberOwners of Factory, Orderbook and Treasury have the highest privileges in the system because they can upgrade contracts of market, Nfthub, order book, treasury, token and factory which form the critical components of the protocol. The...