CVEvulnerability
CVE-2026-41645
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-08
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-94
Description
Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From version 3.0.0 to before version 3.8.0, a vulnerability in Nuclei's expression evaluation engine makes it possible for a malicious target server to inject and execute supported DSL expressions. This happens when HTTP response data containing helper/function syntax gets reused by multi-step templates. If the -env-vars / -ev option is explicitly enabled, this can expose host environment variables. That option is off by default, so standard configurations are not affected by the information disclosure risk. This issue has been patched in version 3.8.0.
Affected configurations
• projectdiscovery nuclei (>= 3.0.0 < 3.8.0)
Related
Weakness · CWE (1)
- CWE-94 Improper Control of Generation of Code weakness
References
- https://github.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0eb Patch
- https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3 Patch
- https://github.com/projectdiscovery/nuclei/pull/7221 Issue Tracking, Patch
- https://github.com/projectdiscovery/nuclei/pull/7321 Issue Tracking, Patch
- https://github.com/projectdiscovery/nuclei/releases/tag/v3.8.0 Product, Release Notes
- https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvr Mitigation, Patch, Vendor Advisory