CVE-2026-23989

REVA Public Link Exploit

CVSS 8.2 HIGHEPSS 0.3%CWE-863

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 8.2EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

06 fev 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

REVA is an interoperability platform. Prior to 2.42.3 and 2.40.3, a bug in the GRPC authorization middleware of the "Reva" component of OpenCloud allows a malicious user to bypass the scope verification of a public link. By exploiting this via the the "archiver" service this can be leveraged to create an archive (zip or tar-file) containing all resources that this creator of the public link has access to. This vulnerability is fixed in 2.42.3 and 2.40.3.

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

Produtos afetados

opencloud-eu · reva

Referências

https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1 https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg