CVE-2026-76804
Received Received - Intake

Workflow Template File Access Bypass in Nuclei

Vulnerability report for CVE-2026-76804, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: GitHub, Inc.

Description

Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the workflow template loading path does not enforce the -file capability gate when resolving file: protocol templates referenced by a workflow. An untrusted unsigned workflow can therefore load a file-protocol template and read local files from the scanner host even when the operator has not enabled file templates. The issue affects CLI users running workflows with -w and SDK integrations that accept end-user workflows while relying on the default file-access restriction. This issue is fixed in version 3.10.0.

CVSS Scores

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Meta Information

Published
2026-09-22
Last Modified
2026-09-22
Generated
2026-09-22
AI Q&A
2026-09-22
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
projectdiscovery nuclei From 3.0.0 (inc) to 3.10.0 (exc)
projectdiscovery nuclei 3.10.0
projectdiscovery nuclei From 3.0.0 (inc) to 3.10.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

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Detection Guidance

To detect this vulnerability, check if you are running Nuclei versions between 3.0.0 and 3.9.0. Run the command 'nuclei -version' to verify your Nuclei version. If the version is within the affected range, the system is vulnerable.

Mitigation Strategies

Upgrade Nuclei to version 3.10.0 or later immediately. Avoid running workflows from unverified or untrusted sources until the upgrade is complete. This prevents potential local file reads via malicious file-protocol templates.

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