CVE-2026-56771

High

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.

SeverityHigh

CVSS8.5

Exploit probability—

ProductNewsBlur

PublishedJun 25, 2026

First seenJun 25, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

samuelclay NewsBlur14.5.0 or later

Patches

Vendor advisories

github.com/samuelclay/NewsBlur/releases/tag/Android_14.5.0

Affected products

Product	Affected versions	Fixed in
samuelclay NewsBlur	v < 14.5.0	14.5.0

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