CVE-2026-71476
Description
A flaw was found in Nx. The self-hosted HTTP remote cache component improperly extracts downloaded cache artifacts, allowing files to be written outside the intended directory. A malicious or on-path (Man-in-the-Middle) remote cache server can exploit this Zip-Slip vulnerability by providing a specially crafted archive. This can lead to arbitrary file writes and potential remote code execution on the machine running Nx, affecting only workspaces configured to use a self-hosted remote cache.
Statement
A flaw was found in Nx where the self-hosted HTTP remote cache extracts downloaded cache artifacts without validating file paths, allowing a Zip-Slip path traversal attack. Red Hat products that bundle Nx use it as a build tool and do not use the self-hosted remote cache feature, limiting the exploitability of this vulnerability in Red Hat environments. The AAP 2.6 and 2.7 gateway container images bundle a vulnerable version of Nx and are being evaluated for impact.
Mitigation
Do not configure Nx to use a self-hosted HTTP remote cache. Use Nx's default local cache or Nx Cloud instead, neither of which are affected by this vulnerability. If a self-hosted remote cache is required, ensure the cache server is trusted and accessed over a secure, authenticated connection to prevent man-in-the-middle attacks. Upgrading to Nx 22.7.7 or 23.0.2 resolves the underlying path traversal issue.
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 | 9.6 | N/A | N/A |
| Attack Vector | Network | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | None | N/A | N/A |
| User Interaction | Required | N/A | N/A |
| Scope | Changed | N/A | N/A |
| Confidentiality | High | N/A | N/A |
| Integrity Impact | High | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
The attacker may be able to create or overwrite critical files that are used to execute code, such as programs or libraries.
Integrity
Technical Impact: Modify Files or Directories
The attacker may be able to overwrite or create critical files, such as programs, libraries, or important data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, appending a new account at the end of a password file may allow an attacker to bypass authentication.
Confidentiality
Technical Impact: Read Files or Directories
The attacker may be able read the contents of unexpected files and expose sensitive data. If the targeted file is used for a security mechanism, then the attacker may be able to bypass that mechanism. For example, by reading a password file, the attacker could conduct brute force password guessing attacks in order to break into an account on the system.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
The attacker may be able to overwrite, delete, or corrupt unexpected critical files such as programs, libraries, or important data. This may prevent the product from working at all and in the case of protection mechanisms such as authentication, it has the potential to lock out product users.
Frequently Asked Questions
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