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THREAT OPS › Threat News › [NVD] CVE-2026-85025 (CRITICAL 9.8) — IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions and session isolation

[NVD] CVE-2026-85025 (CRITICAL 9.8) — IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions and session isolation

mednvdPublished 2026-09-10

CVE-2026-85025 CVSS: 9.8 CRITICAL Published: 2026-09-10T21:17:51.990

IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions and session isolation controls.

Indicators of compromise

CVE-2026-85025cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-85025