CVE-2026-91750: falha de alta gravidade em Tencent WeKnora
WeKnora before 0.7.0 SSRF via Unvalidated HTTP Redirects
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.1epss 0.4%
WeKnora before 0.7.0 fails to re-validate HTTP redirect targets in the POST /api/v1/knowledge-bases/:id/knowledge/url endpoint when downloading documents from user-supplied URLs. Authenticated attackers can bypass initial SSRF validation by supplying a public URL that redirects to internal network addresses, allowing access to internal services and cloud metadata.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Produtos afetados
Tencent · WeKnoraCVEs relacionadas — Tencent WeKnora
No mesmo produto, das mais perigosas para as menos.
CVE-2026-30861CRITICALWeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration ValidationEPSS 2.4%CVE-2026-22688CRITICALWeKnora has Command Injection in MCP stdio testEPSS 1.9%CVE-2026-30860CRITICALWeKnora: Remote Code Execution via SQL Injection Bypass in AI Database Query ToolEPSS 0.7%CVE-2025-11046MEDIUMTencent WeKnora test testEmbeddingModel server-side request forgeryEPSS 0.5%CVE-2026-30247MEDIUMWeKnora: SSRF via RedirectionEPSS 0.4%CVE-2026-30858MEDIUMWeKnora: DNS Rebinding Vulnerability in web_fetch Tool Allows SSRF to Internal ResourcesEPSS 0.4%
Referências
https://github.com/Tencent/WeKnorahttps://github.com/Tencent/WeKnora/blob/v0.6.2/internal/application/service/knowledge_util.go#L339-L348https://github.com/Tencent/WeKnora/commit/1d322c525a6197d24f07555b4b18ad33313b4328https://github.com/Tencent/WeKnora/issues/2511https://www.vulncheck.com/advisories/weknora-before-0.7.0-ssrf-via-unvalidated-http-redirects