Uncaught Exception in nest - #VU166177
Published: November 13, 2026
Vulnerability identifier: #VU166177
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-248
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service by terminating the application process.
The vulnerability exists due to an uncaught exception in the NestJS router when a handler without a bound interceptor returns a Readable stream that fails before being read for a client-influenced path. A remote attacker can send a HEAD request or disconnect before the first chunk to trigger an unhandled stream error and crash the process.
Affected software
nest
Remediation
Install security update from vendor's website.
nest - update to 12.5.0