Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

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

Quick assessment

Affected
samuelclay NewsBlur
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.

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。

CVSS 8.5 · High EPSS 0.35% · P27

Affected Version Matrix 1

VendorProduct Version RangeStatus
samuelclay NewsBlur < 14.5.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-56771

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

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

Vendor Product Affected Versions CPE Subscribe
samuelclay NewsBlur 0 ~ 14.5.0 -

II. Public POCs for CVE-2026-56771

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-56771

请登录查看更多情报信息。

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

No comments yet

Leave a comment