High severity8.2NVD Advisory· Published Jun 9, 2022· Updated Jun 17, 2026
CVE-2022-29255
CVE-2022-29255
Description
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 has been addressed in v0.3.4.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
vyperPyPI | < 0.3.4 | 0.3.4 |
Affected products
3Patches
Vulnerability mechanics
References
5- github.com/vyperlang/vyper/commit/6b4d8ff185de071252feaa1c319712b2d6577f8dnvdPatchThird Party AdvisoryWEB
- github.com/vyperlang/vyper/security/advisories/GHSA-4v9q-cgpw-cf38nvdExploitMitigationThird Party AdvisoryWEB
- github.com/advisories/GHSA-4v9q-cgpw-cf38ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2022-29255ghsaADVISORY
- github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2022-43053.yamlghsaWEB
News mentions
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