Server-side Request Forgery (SSRF) Affecting web3 package, versions [6.0.0b3,7.15.0)[8.0.0b1,8.0.0b2)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published5 Apr 2026
- disclosed4 Apr 2026
- creditNadav0077
Introduced: 4 Apr 2026
CVE-2026-40072 (opens in a new tab)How to fix?
Upgrade web3 to version 7.15.0, 8.0.0b2 or higher.
Overview
web3 is a web3: A Python library for interacting with Ethereum
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the CCIP Read process. An attacker can cause the application to make arbitrary HTTP requests to internal or external destinations by supplying malicious URLs via smart contracts, potentially accessing internal network services or cloud metadata endpoints, or triggering side effects on internal APIs.