highCVSS 7.4NVD status: Analyzed

CVE-2026-9205

Langflow: IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.

ComponentLangflow
Severityhigh (CVSS 7.4)
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published (NVD)2026-08-05
Last modified2026-08-07
Affected versions
langflow >= 1.0.0, < 1.11.0
Fixed in1.11.0
WeaknessCWE-338
CISA KEVnot listed

NVD description

IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.

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What to do

  • Upgrade Langflow to 1.11.0 or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

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