CVE-2026-48159— use-reducer-async was vulnerable to malicious code execution via compromised commits
Quick assessment
Affected
dai-shi use-reducer-async
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Daishi Kato use-reducer-async是Daishi Kato个人开发者的一个异步状态管理Hook库。 Daishi Kato use-reducer-async存在处理逻辑错误漏洞，该漏洞源于npm install期间执行了远程攻击者控制的代码，通过src/install.js从攻击者控制的HTTPS端点获取有效载荷并禁用TLS验证后执行代码，可能导致开发者机器被完全控制。
Possible ATT&CK Techniques 3 AI
T1048 · Exfiltration Over Alternative Protocol T1059.004 · Unix Shell T1195.002 · Compromise Software Supply ChainAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| dai-shi | use-reducer-async | >= da72edbde5705efcec6c62e0a3dcb73687b78dc8, <= df07d5711458d8b46e11dd7afaaa21e88cafabfb |
affected |
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I. Basic Information for CVE-2026-48159
Vulnerability Information
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Vulnerability Title
use-reducer-async was vulnerable to malicious code execution via compromised commits
Source: CVE Program / CVE List V5
Vulnerability Description
use-reducer-async is a React useReducer with async actions. Between 2026-05-18 16:29:52 and 2026-05-19 15:26:07, the default branch contained malicious commits da72edbde5705efcec6c62e0a3dcb73687b78dc8 through df07d5711458d8b46e11dd7afaaa21e88cafabfb that executed remote attacker-controlled code on developer machines during `npm install`. The commits were removed by force-push, but local clones, forks, and direct-SHA URLs may still contain them, and `npm install` against an affected checkout will still execute the code today. The package was not published to npm. `src/install.js` was added and wired into the `postinstall` script. It fetched a JavaScript payload from an attacker-controlled HTTPS endpoint (configurable via an environment variable), disabled TLS verification, and evaluated the response as code with `require` available. Execution was deliberately skipped on CI and cloud/serverless environments, targeting developer workstations. The second-stage payload was attacker-hosted and cannot be reconstructed. Assume full compromise of anything reachable from a Node process with the user's permissions. Those who ran `npm install` against an affected checkout on a developer machine on or after 2026-05-18 16:29:52 should treat the machine as compromised, rotate every credential the machine could reach, audit account activity since 2026-05-18 16:29:52, and clean local clones.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
内嵌的恶意代码
Source: CVE Program / CVE List V5
Vulnerability Title
Daishi Kato use-reducer-async 处理逻辑错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Daishi Kato use-reducer-async是Daishi Kato个人开发者的一个异步状态管理Hook库。 Daishi Kato use-reducer-async存在处理逻辑错误漏洞，该漏洞源于npm install期间执行了远程攻击者控制的代码，通过src/install.js从攻击者控制的HTTPS端点获取有效载荷并禁用TLS验证后执行代码，可能导致开发者机器被完全控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| dai-shi | use-reducer-async | >= da72edbde5705efcec6c62e0a3dcb73687b78dc8, <= df07d5711458d8b46e11dd7afaaa21e88cafabfb | - |
|
II. Public POCs for CVE-2026-48159
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Verified env
Premium
Qwen3.6-35B-A3B
· 10275 chars
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III. Intelligence Information for CVE-2026-48159
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Vendor Advisories for CVE-2026-48159 (1)
Same Patch Batch · dai-shi · 2026-08-10 · 4 CVEs total
| CVE-2026-48158 | 9.3 CRITICAL | use-context-selector was vulnerable to malicious code execution via compromised commits |
| CVE-2026-48160 | 9.3 CRITICAL | react-tracked was vulnerable to malicious code execution via compromised commits |
| CVE-2026-48161 | 9.3 CRITICAL | react18-use was vulnerable to malicious code execution via compromised commits |
IV. Related Vulnerabilities
Same weakness: CWE-506
V. Comments for CVE-2026-48159
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