CVE-2026-40072

web3.py allows you to interact with the Ethereum blockchain using Python. From 6.0.0b3 to before 7.15.0 and 8.0.0b2, web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these...

Exploit for Server-Side Request Forgery in Apeworx Web3.Py

CVE-2026-40072 SSRF Lab Hands-on local lab to demonstrate CVE...

Server-Side Request Forgery (SSRF)

web3.py is vulnerable to Server-Side Request Forgery SSRF. The vulnerability is due to web3.py directly processing contract-supplied URLs in its CCIP Read/OffchainLookup EIP-3668 implementation without validating the destination, which allows an attacker to craft a malicious smart contract that...

CVE-2026-40072

web3.py allows you to interact with the Ethereum blockchain using Python. From 6.0.0b3 to before 7.15.0 and 8.0.0b2, web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these...

CVE-2026-40072 web3.py affected by SSRF via CCIP Read (EIP-3668) OffchainLookup URL handling

web3.py allows you to interact with the Ethereum blockchain using Python. From 6.0.0b3 to before 7.15.0 and 8.0.0b2, web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these...

CVE-2026-40072

CVE-2026-40072 – SSRF via CCIP Read in web3.py Affected: web3.py (Python library) versions 6.0.0b3 through before 7.15.0 and 8.0.0b2. The CCIP Read / OffchainLookup (EIP-3668) implementation fetches URLs supplied by contracts without destination validation and with default-on exposure (global_cci...

CVE-2026-40072

web3.py allows you to interact with the Ethereum blockchain using Python. From 6.0.0b3 to before 7.15.0 and 8.0.0b2, web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these...

CVE-2026-40072 web3.py affected by SSRF via CCIP Read (EIP-3668) OffchainLookup URL handling

web3.py allows you to interact with the Ethereum blockchain using Python. From 6.0.0b3 to before 7.15.0 and 8.0.0b2, web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these...

EUVD-2026-21000

web3.py allows you to interact with the Ethereum blockchain using Python. From 6.0.0b3 to before 7.15.0 and 8.0.0b2, web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these...

GHSA-5HR4-253G-CPX2 web3.py: SSRF via CCIP Read (EIP-3668) OffchainLookup URL handling

Summary web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these contract-supplied URLs directly after sender / data template substitution without any destination validation...

web3.py: SSRF via CCIP Read (EIP-3668) OffchainLookup URL handling

Summary web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in offchainlookuppayload"urls". The implementation uses these contract-supplied URLs directly after sender / data template substitution without any destination validation...

PT-2026-31674

Name of the Vulnerable Software and Affected Versions web3.py versions 6.0.0b3 through 7.15.0 web3.py versions 6.0.0b3 through 8.0.0b2 Description web3.py implements CCIP Read / OffchainLookup EIP-3668 by performing HTTP requests to URLs supplied by smart contracts in the offchain lookup...