CVE Explorer

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 offchain_lookup_payload["urls"]. The implementation uses these contract-supplied URLs directly (after {sender} / {data} template substitution) without any destination validation. CCIP Read is enabled by default (global_ccip_read_enabled = True on all provider

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8b9d2a304fc9c07731dbf21eab57ef5b3bb888652baf450866625e6198c5cdcc

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"web3.py","vendor":"ethereum","versions":[{"status":"affected","version":">= 6.0.0b3, < 7.15.0"},{"status":"affected","version":">= 8.0.0b1, < 8.0.0b2"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1157f7c0395e77408aef11eb30a43844a2ee281f354e54aa2e2ba6986f949a00 · sha256:fa28490425867103… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":1.7,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1157f7c0395e77408aef11eb30a43844a2ee281f354e54aa2e2ba6986f949a00 · sha256:fa28490425867103… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1157f7c0395e77408aef11eb30a43844a2ee281f354e54aa2e2ba6986f949a00 · sha256:fa28490425867103… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/ethereum/web3.py/commit/b1c57bb0a124359c9902daaefab4d8af7c3c4c1e","tags":["x_refsource_MISC"],"url":"https://github.com/ethereum/web3.py/commit/b1c57bb0a124359c9902daaefab4d8af7c3c4c1e"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1157f7c0395e77408aef11eb30a43844a2ee281f354e54aa2e2ba6986f949a00 · sha256:fa28490425867103… · /containers/cna/references/1

{"name":"https://github.com/ethereum/web3.py/security/advisories/GHSA-5hr4-253g-cpx2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ethereum/web3.py/security/advisories/GHSA-5hr4-253g-cpx2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1157f7c0395e77408aef11eb30a43844a2ee281f354e54aa2e2ba6986f949a00 · sha256:fa28490425867103… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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