5.3

CVE-2026-41645

Nuclei: Environment variable disclosure via Response-Derived DSL Expressions

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Projectdiscovery ≫ Nuclei SwPlatformgo Version >= 3.0.0 < 3.8.0
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.34% 0.261
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.3 1.6 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvr
Patch
Vendor Advisory
Mitigation
https://github.com/projectdiscovery/nuclei/pull/7221
Patch
Issue Tracking
https://github.com/projectdiscovery/nuclei/pull/7321
Patch
Issue Tracking
https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3
Patch
https://github.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0eb
Patch
https://github.com/projectdiscovery/nuclei/releases/tag/v3.8.0
Product
Release Notes