CVE Watch20 de out. de 2026

CVE-2026-91157

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did

CVSS

7.5

Alta

EPSS

0.5%

p42

KEV

—

Exploit Today

0-100

Publicado: 14 de out. de 2026 · Última mod.: 20 de out. de 2026 · CWE-200 · CWE-863

EPSS · 30d

0.5%EPSS · 30 dias0.5%

2026-10-152026-11-06

Descrição técnica

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk import. Media and attachments uploaded while the category was public retained a public accessibility flag and remained reachable by anonymous users through their short upload URLs, including uploads associated with deleted topics. This issue is fixed in versions 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9.

Referências oficiais

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