CVE-2026-12940: falha crítica em IBM Langflow OSS
Langflow is affected by remote code execution due to multiple unauthenticated and insufficiently authorized API endpoints
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48Vexday Risk Score
Sem sinal de exploração. Ela tem prova de conceito pública.
ssvc Attendcvss 9.8epss 0.9%
da publicação à arma4 dias
Publicada no NVD30 de jul.
1ª PoC+4d
IBM Langflow OSS 1.0.0 through 1.10.1 are vulnerable to unauthenticated remote code execution via environment variable injection in the MCP (Model Context Protocol) stdio launcher. The vulnerability exists in src/lfx/src/lfx/base/mcp/util.py where the DANGEROUS_ENV_VARS blocklist fails to include SHELLOPTS , BASHOPTS , and PS4 environment variables.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
IBM · Langflow OSSPoCs públicas encontradas — 1
githubgithub.com/BiiTts/CVE-2026-12940-Langflow-Unauth-RCE★ 4⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
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