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Advisory record · GHSA-vgf2-gvx8-xwc3

Vyper Does Not Check the Success of Certain Precompile Calls

CVSS 2.3 LowEPSS 0.0067 · 52nd percentile

Published by the GitHub Advisory Database at 14 Jan 2025, 16:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
vyperPyPIall versionsNo fixed version yet
Identifiers
GHSA-vgf2-gvx8-xwc3 · CVE-2025-21607 · PYSEC-2025-33
Weakness (CWE)
CWE-670 · CWE-703
Tags
Published
14 Jan 2025
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Vyper's compiler does not check the success flag of calls to the EcRecover and Identity precompiles, so a caller who supplies a chosen amount of gas can make these calls fail while execution continues, which can produce incorrect results. Affected versions span roughly 0.2.0 through 0.4.0 depending on the code pattern. The source reports no significantly impacted real-world contracts, and no fixed version is listed.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
2.3 Low 4.0 CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0067, the 52nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:34 UTC First seen by agentprime
  2. 31 Oct 2026, 14:34 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.