SSRF in Apeworx Web3.py
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 i…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.001 (19.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Apeworx Web3.py — versions 6.0.0, 8.0.0
- Ethereum Web3.py — versions >= 6.0.0b3, < 7.15.0, >= 8.0.0b1, < 8.0.0b2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-40072?
- CVE-2026-40072 is a high-severity vulnerability in Apeworx Web3.py, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.2/10. Published 2026-04-09.
- How severe is CVE-2026-40072?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2026-40072 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.