CVE-2026-76802

Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass

Published Sep 22, 2026 CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Description
Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the DAST template loading branch does not apply the unsigned code-template signature check before accepting a template that contains both a fuzzing: block and an unsigned code: block. When an operator enables -dast, an untrusted multiprotocol template can place an unsigned code request into the execution queue and run arbitrary shell commands even without -code or a valid cryptographic signature. The issue affects CLI DAST scans and SDK integrations that enable DAST while accepting attacker-supplied templates. This issue is fixed in version 3.10.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-jpf4-98qj-qr67 Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass
History
Type Values Removed Values Added
First Time appeared Projectdiscovery
Projectdiscovery nuclei
Vendors & Products Projectdiscovery
Projectdiscovery nuclei
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the DAST template loading branch does not apply the unsigned code-template signature check before accepting a template that contains both a fuzzing: block and an unsigned code: block. When an operator enables -dast, an untrusted multiprotocol template can place an unsigned code request into the execution queue and run arbitrary shell commands even without -code or a valid cryptographic signature. The issue affects CLI DAST scans and SDK integrations that enable DAST while accepting attacker-supplied templates. This issue is fixed in version 3.10.0.
Title Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 22, 2026, 5:04 PM
Reserved
Aug 19, 2026, 7:52 PM
Status
Awaiting Analysis
Published
Sep 22, 2026, 5:17 PM
Modified
Sep 24, 2026, 9:20 PM