criticalCVSS 9.9NVD status: Analyzed

CVE-2026-13435

Langflow: IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox implementation.

ComponentLangflow
Severitycritical (CVSS 9.9)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published (NVD)2026-07-30
Last modified2026-08-04
Affected versions
langflow >= 1.0.0, < 1.10.2
Fixed in1.10.2
WeaknessCWE-94
CISA KEVnot listed

NVD description

IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox implementation.

Does CVE-2026-13435 hit the version you run?Paste your docker-compose.yml, requirements.txt or package.json. The scanner checks your pinned versions against this CVE and every other one we track for Langflow.
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What to do

  • Upgrade Langflow to 1.10.2 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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