CVE-2025-27105

vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the...

CVE-2025-26622 sqrt doesn't define rounding behavior in Vyper

vyper is a Pythonic Smart Contract Language for the EVM. Vyper sqrt builtin uses the babylonian method to calculate square roots of decimals. Unfortunately, improper handling of the oscillating final states may lead to sqrt incorrectly returning rounded up results. This issue is being addressed a...

CVE-2025-27105 AugAssign evaluation order causing OOB write within the object in Vyper

vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the...

Vyper 安全漏洞

Vyper is a Pythonic smart contract language for EVM open sourced by vyperlang. A security vulnerability exists in Vyper that stems from multiple evaluations of an iterator expression, which could lead to abnormal program behavior...

Malicious code in zkpay-plonky2-contract (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware ca4c0b192b94b3273cd949b9abe540803dab23bf3c1acc0d6b5405efae321f4e Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

MAL-2025-1263 Malicious code in zkpay-plonky2-contract (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware ca4c0b192b94b3273cd949b9abe540803dab23bf3c1acc0d6b5405efae321f4e Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

Denial Of Service (DoS)

github.com/CosmWasm/wasmvm is vulnerable to a Denial-of-Service DoS. The vulnerability is due to a bug affecting both permissioned and permissionless chains due to its ability to be reliably triggered using a malicious contract, potentially causing a chain crash...

CVE-2022-29255

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions prior to 0.3.4 when a calling an external contract with no return value, the contract address including side effects could be evaluated twice. This may result in incorrect outcomes for contracts. This issue...

GO-2025-3449 wasmvm: Malicious smart contract can slow down block production in github.com/CosmWasm/wasmvm

wasmvm: Malicious smart contract can slow down block production in github.com/CosmWasm/wasmvm...

CVE-2022-24787

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. In version 0.3.1 and prior, bytestrings can have dirty bytes in them, resulting in the word-for-word comparisons giving incorrect results. Even without dirty nonzero bytes, two bytestrings can compare to equal if one en...

CVE-2022-46173

Elrond-GO is a go implementation for the Elrond Network protocol. Versions prior to 1.3.50 are subject to a processing issue where nodes are affected when trying to process a cross-shard relayed transaction with a smart contract deploy transaction data. The problem was a bad correlation between t...

CVE-2022-31172

OpenZeppelin Contracts is a library for smart contract development. Versions 4.1.0 until 4.7.1 are vulnerable to the SignatureChecker reverting. SignatureChecker.isValidSignatureNow is not expected to revert. However, an incorrect assumption about Solidity 0.8's abi.decode allows some cases to...

CVE-2024-43366

zkvyper is a Vyper compiler. Starting in version 1.3.12 and prior to version 1.5.3, since LLL IR has no Turing-incompletness restrictions, it is compiled to a loop with a much more late exit condition. It leads to a loss of funds or other unwanted behavior if the loop body contains it. However,...

CVE-2024-32644

Evmos is a scalable, high-throughput Proof-of-Stake EVM blockchain that is fully compatible and interoperable with Ethereum. Prior to 17.0.0, there is a way to mint arbitrary tokens due to the possibility to have two different states not in sync during the execution of a transaction. The exploit ...

CVE-2024-24561

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.10 and earlier, the bounds check for slices does not account for the ability for start + length to overflow when the values aren't literals. If a slice function uses a non-literal argument for the start ...

CVE-2024-24563

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. Arrays can be keyed by a signed integer, while they are defined for unsigned integers only. The typechecker doesn't throw when spotting the usage of an int as an index for an array. The typechecker allows the usage of...

CVE-2024-37153

Evmos is the Ethereum Virtual Machine EVM Hub on the Cosmos Network. There is an issue with how to liquid stake using Safe which itself is a contract. The bug only appears when there is a local state change together with an ICS20 transfer in the same function and uses the contract's balance, that...

CVE-2024-22419

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. The concat built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. The root cause is that the buildIR for concat doesn't properly adhere to the API of co...

wasmvm: Malicious smart contract can slow down block production

CWA-2025-002 Severity Medium Moderate + Likely^1 Affected versions: - wasmvm = 2.2.0, = 2.1.0, = 2.0.0, 2.0.6 - wasmvm 1.5.8 Patched versions: - wasmvm 1.5.8, 2.0.6, 2.1.5, 2.2.2 Description of the bug The vulnerability can be used to slow down block production. The attack requires a malicious...

GHSA-MX2J-7CMV-353C wasmvm: Malicious smart contract can slow down block production

CWA-2025-002 Severity Medium Moderate + Likely^1 Affected versions: - wasmvm = 2.2.0, = 2.1.0, = 2.0.0, 2.0.6 - wasmvm 1.5.8 Patched versions: - wasmvm 1.5.8, 2.0.6, 2.1.5, 2.2.2 Description of the bug The vulnerability can be used to slow down block production. The attack requires a malicious...