CVE-2026-9103
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk34th percentile - higher than 34% of all known CVEs
Summary
Vulnerability in IBM Langflow OSS versions 1.0.0 through 1.10.0. The /api/v1/login/auto_login endpoint issues long-lived superuser bearer tokens without authentication when AUTO_LOGIN is enabled (default). Permissive CORS settings may expose tokens to untrusted origins.
Risk Assessment
Critical risk – an unauthenticated network attacker can gain full administrative access, leading to complete system compromise.
Recommendation
Disable the AUTO_LOGIN configuration in IBM Langflow OSS. Update to a patched version. Configure CORS to allow only trusted origins.
Original NVD description (English source)
IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/auto_login endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTO_LOGIN configuration is enabled (enabled by default), which may allow an unauthenticated network attacker to obtain full administrative access. Additionally, permissive cross-origin resource sharing (CORS) settings may allow tokens to be exposed to unintended origins, increasing the risk of unauthorized access.