Vulnerability Database · npm · posthog-js · Version
posthog-js 1.429.1
1.429.1 is affected by 1 vulnerability.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to.
Critical 1 High 0 Medium 0 Low 0 Unrated 0
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Released 09 Sep 2026
Licence Apache-2.0 AND MIT
Also known from other sources 0
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
posthog-js 1.429.1 vulnerabilities
1 vulnerability cover posthog-js 1.429.1. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| Critical Malicious Code Vulnerability in posthog-js Package | N/A critical | No fix published | 25 Nov 2025 |
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Questions
About posthog-js 1.429.1
Is posthog-js 1.429.1 vulnerable?
Yes. 1 vulnerability in the Vulert database cover posthog-js 1.429.1: 1 critical, 0 high, 0 medium and 0 low. Each entry above names the fixed version to move to.
Is 1.429.1 the latest release of posthog-js?
No. 1.429.1 was published 09 Sep 2026, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
What does a malicious-package vulnerability mean?
It means the published package itself contained hostile code — a backdoor, a credential stealer or similar — rather than only a bug. Registries remove such packages once they are confirmed, so treat any application that resolved an affected version as compromised and rotate the credentials it could reach.
How do I monitor posthog-js for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the posthog-js version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.