VulnSocial

CVE-2026-56771Disclosure

LOWCVSS 6.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-25: 1Technical Details · 2026-06-25: 106-25
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-56771 Server-Side Request Forgery in NewsBlur Before 14.5.0 Add URL Endpoint https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-56771

    Post summary

    The post announces CVE‑2026‑56771 as an SSRF flaw in NewsBlur versions prior to 14.5.0 affecting the Add URL endpoint, without providing exploit code, patch info, or active‑use evidence.

    0000092
    4.1K followersView on X

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