CVE-2026-27021

Discourse: Poll voters endpoint lacked post visibility checks

CVSS 6.9 MEDIUMEPSS 0.3%CWE-862

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 6.9EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

26 fev 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the voters endpoint in the poll plugin lacked post visibility checks which allowed unauthorized access to voters details of polls in any post. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Produtos afetados

discourse · discourse

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Referências

https://github.com/discourse/discourse/security/advisories/GHSA-f5m5-9hpw-7c2g