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CVE-2024-29896— Astro-Shield's Content-Security-Policy header generation in middleware could be compromised by malicious injections

Quick assessment

Affected
KindSpells astro-shield
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.

Astro-Shield是KindSpells Labs开源的一个库。用于计算 JS 脚本和 CSS 样式表的子资源完整性哈希。 Astro-Shield存在安全漏洞，该漏洞源于CSP标头生成功能允许列出恶意注入的资源。

CVSS 7.5 · High EPSS 0.59% · P48

Possible ATT&CK Techniques 1 AI

T1505.003 · Web Shell
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I. Basic Information for CVE-2024-29896

Vulnerability Information
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Vulnerability Title
Astro-Shield's Content-Security-Policy header generation in middleware could be compromised by malicious injections
Source: CVE Program / CVE List V5
Vulnerability Description
Astro-Shield is a library to compute the subresource integrity hashes for your JS scripts and CSS stylesheets. When automated CSP headers generation for SSR content is enabled and the web application serves content that can be partially controlled by external users, then it is possible that the CSP headers generation feature might be "allow-listing" malicious injected resources like inlined JS, or references to external malicious scripts. The fix is available in version 1.3.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Astro-Shield 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Astro-Shield是KindSpells Labs开源的一个库。用于计算 JS 脚本和 CSS 样式表的子资源完整性哈希。 Astro-Shield存在安全漏洞，该漏洞源于CSP标头生成功能允许列出恶意注入的资源。
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
KindSpells astro-shield = 1.2.0 -

II. Public POCs for CVE-2024-29896

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8417 chars
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III. Intelligence Information for CVE-2024-29896

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Patches & Fixes for CVE-2024-29896 (1)

Vendor Advisories for CVE-2024-29896 (1)

IV. Related Vulnerabilities

Same product: astro-shield
Same vendor: KindSpells
Same weakness: CWE-74