CVE-2026-123829
Description
A flaw was found in Node.js. When recursive file watching is used on macOS and Windows systems, the Node.js Permission Model checks read permissions only on the root directory being monitored rather than validating each nested path. A local process running with restricted permissions can exploit this behavior to observe file system events in unauthorized subdirectories. This flaw leads to information disclosure by exposing restricted file and directory names as well as event timing metadata, although it does not expose actual file contents.
Statement
This vulnerability is rated as Low severity because the flaw is confined to local environments, demands specific non-default execution flags, and only leaks filesystem metadata such as names and timestamps rather than actual file data. In typical Red Hat deployments on Linux systems, the native backend monitoring mechanisms implicated in this issue are not utilized, eliminating exposure. Consequently, standard production workloads running Node.js on supported Red Hat platforms remain unaffected.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 2.5 | N/A | 2.5 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | High | N/A | High |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | None | N/A | None |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
cve.org: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Frequently Asked Questions
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