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Advisory record · GHSA-66ff-xgx4-vchm

protobuf.js: Code injection through bytes field defaults in generated toObject code

CVSS 7.7 HighEPSS 0.0041 · 35th percentile

Published by the GitHub Advisory Database at 12 May 2026, 15:06 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
protobufjsnpm<7.5.6 || >=8.0.0, <8.0.27.5.6, 8.0.2
Identifiers
GHSA-66ff-xgx4-vchm · CVE-2026-44293
Weakness (CWE)
CWE-94
Tags
Published
12 May 2026
Updated
10 Sept 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
7.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0041, the 35th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 13 May 2026, 16:16 UTC Confirmed by NVD

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.