Vulnerability in Projectdiscovery Nuclei
CVE-2026-76804
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.
Published .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Projectdiscovery Nuclei — versions >= 3.0.0, < 3.10.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-76804?
- CVE-2026-76804 is a medium-severity vulnerability in Projectdiscovery Nuclei, classified under Improper Access Control. CVSS score: 5.5/10. Published 2026-09-22.
- How severe is CVE-2026-76804?
- Medium severity. CVSS v3 base score is 5.5 out of 10.