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TI-2022-08601 Aliases CVE-2022-24788GHSA-4mrx-6fxm-8jpg

Buffer overflow in Vyper

Priority MEDIUM 44CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-120 and the CVSS impact.

Summary

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. Versions of vyper prior to 0.3.2 suffer from a potential buffer overrun. Importing a function from a JSON interface which returns `bytes` generates bytecode which does not clamp bytes length, potentially resulting in a buffer overrun. Users are advised to upgrade. There are no known workarounds for this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00986 62nd percentileScored 2026-11-07
Fix Fixed vyper (vyperlang): 0.3.2vyper (PyPI): 0.3.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vyperlangvyperbefore 0.3.20.3.2Patch availableCNA
—vyper (PyPI)before 0.3.20.3.2Patch availableGHSA-4mrx-6fxm-8jpg
  • vyper Vendorvyperlang Affected before 0.3.2 Fixed in 0.3.2 Patch available CNA
  • vyper (PyPI) Vendor— Affected before 0.3.2 Fixed in 0.3.2 Patch available GHSA-4mrx-6fxm-8jpg

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*before 0.3.2Vulnerablevyperlang
  • cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:* Versions before 0.3.2 Vulnerable ·vyperlang

Remediation

  • Fix · CNA vyper (vyperlang) Fixed in 0.3.2
  • Fix · GHSA-4mrx-6fxm-8jpg vyper (PyPI) Fixed in 0.3.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-24788
  2. 2026-10-03 Alias added: GHSA-4mrx-6fxm-8jpg

References

Patch 2

Advisory 1

Other 2

  • TI-2024-16182 Vyper bounds check on built-in `slice()` function can be overflowed CVSS 3.1CRITICAL 9.8
  • TI-2024-14992 concat built-in can corrupt memory in vyper CVSS 3.1CRITICAL 9.8
  • TI-2024-16184 Vyper array negative index vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-08657 Integer bounds error in Vyper CVSS 3.1CRITICAL 9.8
  • TI-2022-11796 Multiple evaluation of contract address in call in vyper CVSS 3.1HIGH 8.2
  • TI-2024-21531 vyper performs double eval of the argument of sqrt CVSS 3.1MEDIUM 5.3
See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences