Vulnerability Description
Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the nuclei/mysql JavaScript library does not enforce the local-file sandbox when a JavaScript template supplies the allowAllFiles MySQL DSN option. An untrusted javascript: template scanning an attacker-controlled MySQL-compatible endpoint can cause the server to issue LOAD DATA LOCAL INFILE requests for arbitrary paths, after which the scanner's MySQL client reads the files and returns their contents to the server even though -allow-local-file-access is disabled. JavaScript templates can run unsigned and without the -code flag on affected versions, and the bypass affects CLI and SDK deployments that accept untrusted templates. This issue is fixed in version 3.10.0.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/projectdiscovery/nuclei/commit/9611926a9a1ca99e8ed554d1b26fbe
- https://github.com/projectdiscovery/nuclei/pull/7473
- https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0
- https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-xhmx-w2j4-rw
FAQ
What is CVE-2026-76803?
CVE-2026-76803 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the nuclei/mysql JavaScript library does not enforce the local-file sandbox when a JavaScript template supp...
How severe is CVE-2026-76803?
CVE-2026-76803 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-76803?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.