CVE-2026-28786

MEDIUM

4.3

Descricao

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an unsanitized filename field in the speech-to-text transcription endpoint allows any authenticated non-admin user to trigger a `FileNotFoundError` whose message — including the server's absolute `DATA_DIR` path — is returned verbatim in the HTTP 400 response body, confirming information disclosure on all default deployments. Version 0.8.6 patches the issue.

Detalhes CVE

Pontuacao CVSS v3.14.3

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado3/27/2026

Ultima modificacao3/27/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-22CWE-209

Referencias

https://github.com/open-webui/open-webui/security/advisories/GHSA-vvxm-vxmr-624h(security-advisories@github.com)

https://github.com/open-webui/open-webui/security/advisories/GHSA-vvxm-vxmr-624h(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlacoes IOC

Sem correlacoes registradas

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