CVE catalog
CVE-2026-41645
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 malicio
- Severity
- Medium · CVSS 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.35% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | nuclei | Not reported | 3.8.0 | fixed |
| Cpe | nuclei | Not reported | 3.8.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | nuclei | cpe | Not reported | 3.8.0 | Not reported | Not reported | Not reported |
| Cpe | nuclei | cpe | Not reported | 3.8.0 | Not reported | NVD-CVE-2026-41645 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0eb]
- [https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3]
- [https://github.com/projectdiscovery/nuclei/pull/7221]
- [https://github.com/projectdiscovery/nuclei/pull/7321]
- [https://github.com/projectdiscovery/nuclei/releases/tag/v3.8.0]
- [https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvr]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-41645]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41645.json]
[FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]