Vulnerability · Published Apr 20, 2026 · Assigned by mitre
CVE-2026-41282
Medium 4.0
In plain English
A medium-severity code injection in Nuclei from ProjectDiscovery. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.0Medium
Exploit odds (30 days)0.2%top 83.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/projectdiscovery/nuclei | no fix listed | GO-2026-5473 |
| Go | github.com/projectdiscovery/nuclei/v2 | no fix listed | GO-2026-5473 |
| Go | github.com/projectdiscovery/nuclei/v3 | 3.8.0 | GHSA-jm34-66cf-qpvr |
| Go | github.com/projectdiscovery/nuclei/v3 | 3.8.0 | GO-2026-5473 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ProjectDiscovery | Nuclei | 3.0.0 – before 3.8.0 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
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