CVE-2026-41645

5.3 MEDIUM 0.4% exploit odds Fix listed Injection Server

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-05-08 04:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-26 20:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 5.3 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-05-08 04:16 UTC
Last modified: 2026-10-26 20:10 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-94 · Code injection
Record status: Analyzed

Affected

Projectdiscovery Nuclei < 3.8.0

Attack profile CVSS 3.1 · 5.3

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2026-41645.md and follow it. Check whether this project is affected by CVE-2026-41645. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record