protobufjs Known Vulnerabilities & Fixes
protobufjs has 3 known security vulnerabilities in npm (Node.js). Upgrade to version 8.0.2 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 8.0.2
Upgrading to 8.0.2 or later resolves all 3 known vulnerabilities in protobufjs. Run: npm install protobufjs@8.0.2
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Check if you're affected and upgrade to 8.0.2 to stay secure.
Security Summary
- 6 affected version ranges have been identified across these 3 advisories.
- 100% of known issues have a published fixed version.
- Remediation: npm update protobufjs
Vulnerabilities
3 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Jul 5, 2023, most recently May 12, 2026 (1042 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-41242 Arbitrary code execution in protobufjs | CRITICAL | All versions | 8.0.1, 7.5.5 |
| CVE-2023-36665 protobufjs Prototype Pollution vulnerability | CRITICAL | All versions | 7.2.5, 6.11.4 |
| CVE-2026-44293 protobuf.js: Code injection through bytes field defaults in generated toObject code | HIGH | All versions | 7.5.6, 8.0.2 |
About This Data
Vulnerability data for protobufjs is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related npm (Node.js) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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