Server-side Request Forgery (SSRF) Affecting @langchain/community package, versions <1.1.18
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Feb 2026
- disclosed25 Feb 2026
- creditr3dbrothers
Introduced: 25 Feb 2026
CVE-2026-27795 (opens in a new tab)How to fix?
Upgrade @langchain/community to version 1.1.18 or higher.
Overview
@langchain/community is a Third-party integrations for LangChain.js
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the RecursiveUrlLoader class. An attacker can access internal network resources or sensitive cloud metadata by supplying a public URL that redirects to internal or protected endpoints, exploiting the lack of revalidation on redirect targets.