CVE-2026-41645Nuclei is a vulnerability scanner built on a simple YAML-based DSL.
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
projectdiscovery nuclei projectdiscovery:nuclei | from 3.0.0 before 3.8.0 | NVD |
References
- https://github.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0ebpatch
- https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3patch
- https://github.com/projectdiscovery/nuclei/pull/7221issue-tracking, patch
- https://github.com/projectdiscovery/nuclei/pull/7321issue-tracking, patch
- https://github.com/projectdiscovery/nuclei/releases/tag/v3.8.0product, release-notes
- https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvrmitigation, patch, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.