---
id: "CVE-2026-92186"
kind: "vulnerability"
aliases: ["CVE-2026-92186"]
title: "Quest Foglight for Databases: path traversal lets authenticated users run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "other"
products: [{"name": "Foglight for Databases", "fixed": ["8.3"], "affected": "< 8.3", "ecosystem": "vendor"}]
ecosystems: []
tags: ["auth-required", "database-monitoring", "other", "quest-foglight", "self-hosted", "windows"]
not_affected_if: ["fixed-version", "no-foglight-installed", "not-installed", "unauthenticated-only-exposure"]
published_at: "2026-11-04T00:17:28+00:00"
first_seen_at: "2026-11-04T00:46:18+00:00"
updated_at: "2026-11-04T00:53:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92186", "first_seen_at": "2026-11-04T00:46:18+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-11-04T00:53:53+00:00"}]
---

# Quest Foglight for Databases: path traversal lets authenticated users run code

Teams running a Quest Foglight for Databases management server on a version before 8.3 are exposed. An attacker needs a valid Foglight login; they can then abuse an unvalidated file path in the paFnUploadFileAndCreateInfo script to run code as SYSTEM. Installs on 8.3 or later, and teams that do not run Foglight, can skip it.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Foglight for Databases affected < 8.3 fixed 8.3

## How to check

Find the Foglight Management Server for Databases and check its version. Versions before 8.3 are treated as affected per ZDI; the lower bound is not published. Authenticated users can reach paFnUploadFileAndCreateInfo, so also review who has Foglight accounts and whether the web UI is reachable from untrusted networks.

## Fix

Upgrade Foglight (for Databases) to 8.3 or later, per ZDI-26-858 ('Fixed in Foglight 8.3'). Exact 8.3.x build not stated.

## Timeline

- 2026-11-04T00:46:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-92186
- 2026-11-04T00:53:53+00:00 analyst — ZDI-26-858 (ZDI-CAN-29038): authenticated path traversal to SYSTEM RCE, CVSS 8.8, fixed in Foglight 8.3. Quest 8.3.0 release notes (July 2026) do not mention the CVE and no Quest advisory found, so nothing marked verified (ZDI is not the vendor). Lower affected bound unknown. No exploitation or PoC seen. X not checked.

## Documents

- [advisory] ZDI-26-858 Quest Foglight for Databases paFnUploadFileAndCreateInfo https://www.zerodayinitiative.com/advisories/ZDI-26-858/

## From the sources

Quest Foglight for Databases paFnUploadFileAndCreateInfo Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Quest Foglight for Databases. Authentication is required to exploit this vulnerability.

The specific flaw exists within the paFnUploadFileAndCreateInfo script. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-29038.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_