CVE-2026-48995
Description
A flaw was found in pnpm, a package manager. This vulnerability allows a remote attacker to serve malicious software packages if the codeload.github.com server is compromised or a user's machine configuration is tampered with. The issue arises because pnpm does not verify the integrity of dependencies downloaded from https://codeload.github.com against its lockfile. This could lead to the installation of unverified and potentially malicious code, resulting in arbitrary code execution on the affected system.
Statement
This Important vulnerability in pnpm, as shipped in Red Hat products, exposes users to supply chain attacks by failing to verify the integrity of dependencies sourced from codeload.github.com. If the codeload.github.com server is compromised or a user's local machine configuration is tampered with, pnpm could install malicious software packages without detection, leading to arbitrary code execution. This risk is heightened in environments where developers rely on GitHub git dependencies without additional integrity checks.
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 | 7.5 | 7.5 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | High | High | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | Required | Required | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | High | High | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Integrity,Availability,Confidentiality,Other
Technical Impact: Execute Unauthorized Code or Commands; Alter Execution Logic; Other
Executing untrusted code could compromise the control flow of the program. The untrusted code could execute attacker-controlled commands, read or modify sensitive resources, or prevent the software from functioning correctly for legitimate users.
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