Improper Resource Shutdown or Release in boxlite - CVE-2026-47213
Published: May 30, 2026
Vulnerability identifier: #VU133093
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-47213
CWE-ID: CWE-404
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: BoxLite
Affected software:
boxlite
boxlite
Detailed vulnerability description
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in the execution timeout watcher when handling execution requests with a configured timeout. A remote user can submit code that ignores or catches SIGALRM to cause a denial of service.
The issue occurs because the timeout mechanism sends SIGALRM instead of the uncatchable SIGKILL signal.
How to mitigate CVE-2026-47213
Install security update from vendor's website.