Vulnerability Database · npm · langsmith · Version
langsmith 0.4.2
0.4.2 is affected by 2 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to.
Critical 0 High 0 Medium 2 Low 0 Unrated 0
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Released 22 Dec 2025
Licence MIT
Also known from other sources 4
Newer releases 300
Database updated 23/Oct/2026
Release and licence data published by the npm registry. Licence information is not legal advice.
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01 Vulnerabilities affecting this version
langsmith 0.4.2 vulnerabilities
2 vulnerabilities cover langsmith 0.4.2. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2026-40190: LangSmith SDK Prototype Pollution via Incomplete Lodash Guard | 5.6 medium | 0.5.18 | 10 Apr 2026 |
| LangSmith SDK Vulnerability: Streaming Token Events Bypass Output Redaction | 5.3 medium | 0.5.19 | 16 Apr 2026 |
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Questions
About langsmith 0.4.2
Is langsmith 0.4.2 vulnerable?
Yes. 2 vulnerabilities in the Vulert database cover langsmith 0.4.2: 0 critical, 0 high, 2 medium and 0 low. Each entry above names the fixed version to move to.
Is 0.4.2 the latest release of langsmith?
No. 0.4.2 was published 22 Dec 2025, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor langsmith for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the langsmith version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.