CVE-2026-48038
Description
A flaw was found in joi, a JavaScript data validation library. When validating deeply nested input against recursive link() schemas, an uncaught RangeError is thrown due to excessive stack depth. If the application does not wrap validate() calls in a try/catch block, this unhandled exception crashes the process, resulting in a denial of service.
Statement
A flaw was found in joi, a data validation library for JavaScript. Deeply nested input validated against recursive link() schemas triggers an uncaught RangeError that can crash the process when validate() is called without try/catch, leading to denial of service.
Mitigation
Upgrade to joi 17.13.4 or 18.2.1. As a workaround, wrap validate() calls in try/catch to prevent uncaught exceptions from crashing the process.
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 | 5.3 | N/A | 5.3 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | Low | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Understanding the Weakness (CWE)
Availability,Confidentiality
Technical Impact: DoS: Crash, Exit, or Restart; Read Application Data
An uncaught exception could cause the system to be placed in a state that could lead to a crash, exposure of sensitive information or other unintended behaviors.
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