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Advisory record · GHSA-p7mv-53f2-4cwj

CometBFT Vote Extensions: Panic when receiving a Pre-commit with an invalid data

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 6 Nov 2024, 15:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/cometbft/cometbftGo>=0.38.0, <0.38.150.38.15
Identifiers
GHSA-p7mv-53f2-4cwj · GO-2024-3259
Weakness (CWE)
CWE-129
Tags
Published
6 Nov 2024
Updated
2 Sept 2026

Machine-written summary

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

CometBFT versions 0.38.0 up to but not including 0.38.15 are affected. A node in a network with vote extensions enabled can send a Precommit vote with an invalid validator index, which causes a panic in peers that process it. Upgrade to CometBFT 0.38.15 or later. Vote extensions are disabled by default, and networks that leave them off are not affected.

Written 6 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
Not published None 4.0 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:46 UTC First seen by agentprime
  2. 31 Oct 2026, 14:46 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.