CriticalVulnerabilityLLM-specific

CVE-2023-44467: LangChain Experimental sandbox bypass allows arbitrary code execution

Source: NVD(opens in a new tab)
Identifier: CVE-2023-44467
Published: October 9, 2023
Record updated: October 9, 2026

Affected: langchain-experimental <= 0.0.14
Fixed in: No fixed version was stated when the source was last read.
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 1.0%

Summary

CVE-2023-44467 affects langchain_experimental (aka LangChain Experimental) in LangChain before 0.0.306. An attacker can bypass the CVE-2023-36258 fix and execute arbitrary code via __import__ in Python code, which pal_chain/base.py does not prohibit.

Mitigation

Reference: https://github.com/langchain-ai/langchain/commit/4c97a10bd0d9385cfee234a63b5bd826a295e483 (patch). Fixed in LangChain 0.0.306 or later.

Details

Scores and exploitation

CVSS score: 9.8(critical)
EPSS: 1.0%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.

Affected

Packages: langchain-experimental@<= 0.0.14
Vendors: LangChain

Classification

Attack type: Other
Attack sophistication: Trivial
AI component targeted: Framework
Impact: Confidentiality,
Integrity,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2023-44467

First tracked: February 15, 2026 at 08:35 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 95% (self-assessed)

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

langchain-experimentalPyPILLM dependency since 2023-07-21 · 1 tracked dependent

Summary

Mitigation

Affected packages in the Exposure Registry

Related items