highCVSS 7.5NVD status: Analyzed

CVE-2026-18899

Langflow: IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to read arbitrary files due to path traversal.

ComponentLangflow
Severityhigh (CVSS 7.5)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published (NVD)2026-08-28
Last modified2026-09-01
Affected versions
langflow >= 1.0.0, < 1.11.2
Fixed in1.11.2
WeaknessCWE-22
CISA KEVnot listed

NVD description

IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to read arbitrary files due to path traversal.

Does CVE-2026-18899 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 1.11.2 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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