CVE-2025-68616— WeasyPrint Vulnerable to Server-Side Request Forgery (SSRF) Protection Bypass via HTTP Redirect
Quick assessment
Affected
Kozea WeasyPrint
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WeasyPrint是Kozea开源的一种智能解决方案。可帮助 Web 开发人员创建 PDF 文件。 WeasyPrint 68.0之前版本存在代码问题漏洞，该漏洞源于default_url_fetcher存在服务端请求伪造保护绕过，可能导致攻击者访问内部网络资源。
Possible ATT&CK Techniques 1 AI
T1598 · Phishing for InformationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Kozea | WeasyPrint | < 68.0 |
affected |
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I. Basic Information for CVE-2025-68616
Vulnerability Information
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Vulnerability Title
WeasyPrint Vulnerable to Server-Side Request Forgery (SSRF) Protection Bypass via HTTP Redirect
Source: CVE Program / CVE List V5
Vulnerability Description
WeasyPrint helps web developers to create PDF documents. Prior to version 68.0, a server-side request forgery (SSRF) protection bypass exists in WeasyPrint's `default_url_fetcher`. The vulnerability allows attackers to access internal network resources (such as `localhost` services or cloud metadata endpoints) even when a developer has implemented a custom `url_fetcher` to block such access. This occurs because the underlying `urllib` library follows HTTP redirects automatically without re-validating the new destination against the developer's security policy. Version 68.0 contains a patch for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
WeasyPrint 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeasyPrint是Kozea开源的一种智能解决方案。可帮助 Web 开发人员创建 PDF 文件。 WeasyPrint 68.0之前版本存在代码问题漏洞，该漏洞源于default_url_fetcher存在服务端请求伪造保护绕过，可能导致攻击者访问内部网络资源。
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 |
|---|---|---|---|---|
| Kozea | WeasyPrint | < 68.0 | - |
|
II. Public POCs for CVE-2025-68616
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-68616 (1)
IV. Related Vulnerabilities
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Same weakness: CWE-601
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V. Comments for CVE-2025-68616
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