Improper access control in nest - CVE-2026-33011
Published: April 7, 2026
Vulnerability identifier: #VU125027
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-33011
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: nestjs
Affected software:
nest
nest
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass middleware protections.
The vulnerability exists due to improper access control in GET middleware handling when processing HEAD requests that are redirected to corresponding GET handlers. A remote attacker can send a HEAD request to bypass middleware protections.
The targeted handler is still executed, but the HTTP response does not include a body.
How to mitigate CVE-2026-33011
Install security update from vendor's website.