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Sunday, 13 September 2026
8 agent hacks today▲ 7 vs yesterday (1)
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Incident database

CVE-2026-21445: Missing authentication on Langflow API endpoints exposes conversation data

Multiple critical API endpoints in Langflow lacked authentication controls prior to version 1.7.0.dev45, allowing unauthenticated users to read user conversation data and transaction histories and to perform destructive operations such as message deletion. A patch is available in version 1.7.0.dev45.

Disclosed 2 January 2026 · Record updated 13 September 2026

Impact

Unauthenticated access to sensitive user conversation data and transaction histories, plus the ability to delete messages and perform other system operations.

Our coverage

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Sources

  1. nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-21445