CVE-2026-59828

Discourse: Hidden post revisions leak through adjacent visible diffs

CVSS 5.3 MEDIUMCWE-200

Vexday Risk Score

10Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 5.3EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

09 jul 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, post revisions that should be hidden from regular users could be leaked through visible diffs on adjacent revisions serialized by PostRevisionSerializer. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

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

Produtos afetados

discourse · discourse

Referências