GCD AI RADAR
incidents/AIR-2026-0476

CVE-2026-27795: LangChain Community RecursiveUrlLoader SSRF Bypass

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerability

A redirect-based SSRF bypass vulnerability affects the RecursiveUrlLoader component in LangChain Community. The flaw permits underlying fetch operations to follow redirects to internal endpoints without revalidation.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerability
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
owasp llm top 10
mitre atlas
no technique for these categories
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
Framework / tooling
products
@langchain/community, RecursiveUrlLoader
incident date
25 Feb 2026
first reported
25 Feb 2026
origin
GitHub Advisory Database
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
classifier confidence
0.90 · published at or above 0.80; see the methodology
tags
CVE-2026-27795 · ssrf · langchain
record
created 2026-10-18 07:00Z · updated 2026-10-18 10:04Z · json

Sources · 2

  1. 2026-02-25
    CVE-2026-27795: LangChain Community: redirect chaining can lead to SSRF bypass via RecursiveUrlLoader
    GitHub Advisory Database · github.com/advisories/GHSA-mphv-75cg-56wg
  2. 2026-02-25
    CVE-2026-27795: LangChain is a framework for building LLM-powered applications.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-27795

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