What’s Vulnerable › Vulnerabilities

CVE-2026-76802: Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-22 · updated 2026-09-24
• Weakness: CWE-78

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.

Affected products

• projectdiscovery nuclei: from 3.0.0, < 3.10.0

References

• https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645
• https://github.com/projectdiscovery/nuclei/pull/7472
• https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0
• https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jpf4-98qj-qr67

Get alerted when CVE-2026-76802 or the next vulnerability affects your stack