StackPrism

PyPI package

langchain 1.0.1 vulnerability, and the version that fixes it

langchain 1.0.1 has 1 known vulnerability; 1.3.9 fixes it.

PyPI (opens in a new tab) describes it as “Building applications with LLMs through composability”

Known vulnerabilities
1
None rated high or critical
Released
Oct 20, 2025
Latest is 1.4.6
Licence
MIT
OpenSSF Scorecard
5.9/10
langchain-ai/langchain (opens in a new tab)
Pulls in
38 packages
Resolved by deps.dev

What to upgrade to

1.3.9 is the closest release with no known vulnerabilities.

  • 1.3.9Upgrade to this

    Fixes the known vulnerability. Released Jun 12, 2026.

    No known vulnerabilities

  • 1.4.6

    Newest 1.x release and the latest release. Released Oct 14, 2026.

    No known vulnerabilities

1.3.9 came out on Jun 12, 2026. A coding agent trained before then doesn’t know it exists, so it may suggest an older release. AI knowledge cutoff dates

Hand the fix to your coding agent

One task with the upgrade, the file to change and why. Paste it into Claude Code, Cursor or Codex.

Findings

Every advisory for langchain 1.0.1

Known exploited first (CISA KEV), then by how likely they are to be exploited (FIRST EPSS), then by severity. Each id links to its OSV.dev record.

  1. WarningCVE-2026-55443 on OSV.dev (opens in a new tab)GHSA-gr75-jv2w-4656EPSS: top 90%

    LangChain: Path traversal and sandbox escape in LangChain file-search middleware and loaders

    Fixed in 1.3.9. Published Jun 16, 2026.

Is langchain the only one?

Paste a public GitHub repo or drop your requirements.txt or pyproject.toml and see every vulnerable, end-of-life or deprecated dependency, with one fix task. Free, no sign-up.

Check your whole repo

How this page is checked

StackPrism asks OSV.dev which advisories affect exactly langchain 1.0.1, merges duplicates filed under several ids, and ranks them with CISA’s Known Exploited Vulnerabilities list and FIRST EPSS. Release dates and deprecation come from deps.dev and PyPI. No AI writes this page: every sentence comes from that data, refreshed every few hours.

Last checked against PyPI, OSV.dev, deps.dev, CISA KEV and FIRST EPSS.