# @langchain/core (npm) vulnerabilities

1 known vulnerability (1 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 1.3.5 (Nov 5, 2026): no advisory affects it
- Newest unaffected release: 1.3.5 (Nov 5, 2026), the latest release
- Weekly downloads: 8.3M
- Dependents: 1,610
- Releases: 366 since 0.0.0 (Nov 22, 2023)
- Registry: https://www.npmjs.com/package/@langchain/core
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2025-68665: 0.0.0 to 0.3.79 (0.3.80 is outside it); 1.0.0 to 1.1.8-dev-1766775128110 (1.1.8 is outside it)

## Advisories (1)

### [CVE-2025-68665](https://cve.now/CVE-2025-68665): LangChain serialization injection vulnerability enables secret extraction

- Severity: High 8.6
- Published: Dec 23, 2025
- Affected: from 1.0.0, fixed in 1.1.8; fixed in 0.3.80.
- Fixed in 0.3.80 (released Dec 23, 2025, the day of disclosure) and 1.1.8 (released Dec 22, 2025, 1 day before disclosure).
- The latest release, 1.3.5, is not affected.
- 15% of @langchain/core downloads last week were affected versions (1.3M).

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