CVE-2026-34577

HIGH

8.6

Descricao

Postiz is an AI social media scheduling tool. Prior to version 2.21.3, the GET /public/stream endpoint in PublicController accepts a user-supplied url query parameter and proxies the full HTTP response back to the caller. The only validation is url.endsWith('mp4'), which is trivially bypassable by appending .mp4 as a query parameter value or URL fragment. The endpoint requires no authentication and has no SSRF protections, allowing an unauthenticated attacker to read responses from internal services, cloud metadata endpoints, and other network-internal resources. This issue has been patched in version 2.21.3.

Detalhes CVE

Pontuacao CVSS v3.18.6

SeveridadeHIGH

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado4/2/2026

Ultima modificacao4/3/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-918

Referencias

https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.3(security-advisories@github.com)

https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-mv6h-v3jg-g539(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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