GCD AI RADAR
incidents/AIR-2026-1330

CVE-2026-19306: IBM Langflow OSS arbitrary file read and data exfiltration

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerabilityData leak

A path traversal vulnerability in IBM Langflow OSS lets authenticated attackers read sensitive system files and exfiltrate them via model prompts. The vendor has disclosed the vulnerability with no confirmed active exploitation.

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 vulnerabilityprimary
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
  • Data leak
    Training data, chat logs, system prompts, model weights or other AI-system data exposed.
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
Langflow
incident date
4 Sep 2026
first reported
4 Sep 2026
origin
NVD
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
0.95 · published at or above 0.80; see the methodology
tags
CVE-2026-19306 · path-traversal · data_leak
record
created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z · json

Sources · 1

  1. 2026-09-04
    CVE-2026-19306: IBM Langflow OSS 1.0.0 through 1.11.2 allows an authenticated attacker to read arbitrary files from the server filesystem —…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-19306

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