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CVE-2026-56771— NewsBlur < 14.5.0 - Server-Side Request Forgery via add_url Endpoint

CVSS 8.5 · High EPSS 0.20% · P11

Affected Version Matrix 1

VendorProductVersion RangeStatus
samuelclayNewsBlur< 14.5.0affected
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I. Basic Information for CVE-2026-56771

Vulnerability Information
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Vulnerability Title
NewsBlur < 14.5.0 - Server-Side Request Forgery via add_url Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
NewsBlur before version 14.5.0 contains a server-side request forgery vulnerability in the add_url endpoint that allows authenticated users to make arbitrary server requests to internal networks by failing to filter private IP addresses. Attackers can exploit this to access localhost services and cloud metadata endpoints, enabling internal network scanning and sensitive data exfiltration.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Samuel Clay NewsBlur 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Samuel Clay NewsBlur是美国Samuel Clay个人开发者的一款个人新闻阅读器。 Samuel Clay NewsBlur 14.5.0之前版本存在服务端请求伪造漏洞，该漏洞源于add_url端点未过滤私有IP地址，可能导致经过身份验证的用户对内部网络发起服务端请求伪造攻击，从而访问本地服务、云元数据端点，进行内部网络扫描和敏感数据渗漏。
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

VendorProductAffected VersionsCPESubscribe
samuelclayNewsBlur 0 ~ 14.5.0 -

II. Public POCs for CVE-2026-56771

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III. Intelligence Information for CVE-2026-56771

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Patches & Fixes for CVE-2026-56771 (1)

Vendor Advisories for CVE-2026-56771 (1)

Vendor Pages for CVE-2026-56771 (1)

IV. Related Vulnerabilities

Same product: NewsBlur
Same vendor: samuelclay
Same weakness: CWE-918

V. Comments for CVE-2026-56771

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