CVE-2026-56847
nodejs: Node.js: Permission Model flaw allows trace logs to bypass filesystem write restrictions
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 30, 2026
Updated · October 19, 2026
Description
A flaw in the Node.js Permission Model allows trace_events.createTracing().enable() to bypass --allow-fs-write restrictions and write trace logs outside intended paths, potentially leading to unauthorized information disclosure.
Statement
This Low impact flaw in Node.js allows a local attacker to bypass filesystem write restrictions for trace logs when using trace_events.createTracing().enable(). This limited integrity impact permits specific log files to be written outside the intended --allow-fs-write boundary.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Avoid using the trace_events.createTracing().enable() function in environments that rely on the Node.js Permission Model for file system isolation. Be aware that avoiding this function disables dynamic trace log generation, which may impact performance profiling, APM monitoring, and diagnostic workflows.
CVSS / CWE
CVSS 3.1 · 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE-284 · Improper Access Control