PT-2026-67503 · Shlinkio · Shlink

Theodosis Paidakis · CVE-2026-18736 · Publicado 2026-08-03 · Atualizado 2026-08-03

Mitre

CVSS v3.1

5.0

Média

Vetor base

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Shlink contains a server-side request forgery vulnerability that allows authenticated API key holders to cause the server to issue arbitrary HTTP GET requests by supplying a crafted long URL during short URL creation with title auto-resolution enabled. Attackers can submit URLs pointing to public hosts that redirect to internal targets, including loopback addresses, link-local ranges, and cloud metadata endpoints such as 169.254.169.254, to exfiltrate internal service information via the HTML title element returned in the short URL creation response.

Correção

SSRF

Enumeração de Fraquezas

CWE-918

Identificadores relacionados

CVE-2026-18736

Produtos afetados

Shlink

Referências · 4

• https://github.com/shlinkio/shlink · Nota
• https://github.com/theopaid/Server-side-request-forgery-through-short-URL-title-resolution-shlink- · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-18736 · Nota de Segurança
• https://vulncheck.com/advisories/shlink-server-side-request-forgery-via-short-url-title-auto-resolution · Nota