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CVE-2026-41645

5.3 · MEDIUM

Nuclei is a vulnerability scanner built on a simple YAML-based DSL.

Published May 8, 2026CWE-94EPSS 0.44%

Overview

CVE-2026-41645 is a medium-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0ebGitHubgithub.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3GitHubgithub.com/projectdiscovery/nuclei/pull/7221GitHubgithub.com/projectdiscovery/nuclei/pull/7321GitHubgithub.com/projectdiscovery/nuclei/releases/tag/v3.8.0GitHubgithub.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvr

How CyberStrike helps

Frequently asked questions

What is CVE-2026-41645?

CVE-2026-41645 is a medium-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-41645?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-41645?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-41645?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-41645 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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