CVE-2026-41646Public exploit

Local file disclosure via unrestricted require loader

Published May 8, 2026 · Updated May 8, 2026

Local file disclosure in ProjectDiscovery Nuclei 3.0.0 and later but before 3.8.0 allows attackers to read host .js and .json files via templates. The goja require() registry used its default host filesystem loader instead of routing module paths through the disabled allow-local-file-access check. Exploitation requires a CLI user to run an untrusted JavaScript template, or an SDK integration to accept one, and exposes only .js and .json files.

CVSS severity5.5
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Local file disclosure in ProjectDiscovery Nuclei 3.0.0 and later but before 3.8.0 allows attackers to read host .js and .json files via templates. The goja require() registry used its default host filesystem loader instead of routing module paths through the disabled allow-local-file-access check. Exploitation requires a CLI user to run an untrusted JavaScript template, or an SDK integration to accept one, and exposes only .js and .json files.

The record

CVE
CVE-2026-41646
Published
May 8, 2026
Updated
May 8, 2026
Vendor
ProjectDiscovery
Product
Nuclei
Classifications
CWE-284, T1005, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 3.0.0, < 3.8.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ProjectDiscovery · Nucleiversion=>= 3.0.0, < 3.8.0

Published CVSS scores

5.5GitHubCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1005Data from Local System
T1204.002User Execution Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo