SSRF in Langchain Langchain_community
CVE-2026-26019
LangChain is a framework for building LLM-powered applications. Prior to 1.1.14, the RecursiveUrlLoader class in @langchain/community is a web crawler that recursively follows links from a starting URL. Its preventOutside option (enabled b…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.004 (28.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N.
Affected products
- Langchain Langchain_community
- Langchain-ai Langchainjs — versions < 1.1.14
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-26019?
- CVE-2026-26019 is a medium-severity vulnerability in Langchain Langchain_community, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.1/10. Published 2026-02-11.
- How severe is CVE-2026-26019?
- Medium severity. CVSS v3 base score is 4.1 out of 10.