CVE-2026-50887

CRITICAL

shlink 5.0.1 - Server-Side Request Forgery via LongUrl Parameter

Title source: llm

Description

A Server-Side Request Forgery (SSRF) in the automatic short URL title resolution component of shlink v5.0.1 allows attackers to scan internal resources via supplying a crafted longUrl.

References (1)

Core 1

Core References

https://gist.github.com/pyuysig/9de95fb39eb089a4346570d791af99a6

Scores

CVSS v3 9.1

EPSS 0.0029

EPSS Percentile 20.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-918

Status published

Published Jun 15, 2026

Tracked Since Jun 16, 2026