HighVulnerability

CVE-2023-46229: LangChain SSRF via recursive URL loader crawling to internal servers

Source: NVD(opens in a new tab)
Identifier: CVE-2023-46229
Published: October 19, 2023
Record updated: October 21, 2026

Affected: langchain >= 0, < 0.0.317
Fixed in: 0.0.317
released October 18, 2023, 1 day before disclosure
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 47.6%

Summary

CVE-2023-46229 affects LangChain before 0.0.317. The flaw is in document_loaders/recursive_url_loader.py, which allows server-side request forgery because crawling can proceed from an external server to an internal server. The CWE is CWE-918, and NVD has not yet provided an assessment.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

CVSS score: 8.8(high)
Patch available: Yes
EPSS: 47.6%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.

Weaknesses and techniques

Weakness (CWE): CWE-918
Attack pattern (CAPEC): CAPEC-664

Affected

Packages: langchain@>= 0, < 0.0.317 (fixed: 0.0.317)
Vendors: LangChain

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Framework
Impact: Confidentiality,
Integrity
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-2023-46229

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

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

Classifier confidence: 90% (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.

langchainPyPILLM dependency since 2022-10-25 · 31 tracked dependents

Summary

Mitigation

Affected packages in the Exposure Registry

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