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CVE-2026-8481

CRITICAL
9.9
CVSS 3.1
Description
IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the code validation API endpoint. The POST /api/v1/validate/code endpoint accepts user-supplied Python code and executes it directly using Python's built-in exec() function without sandboxing, input validation, or privilege restrictions, enabling any authenticated user to execute arbitrary system commands with the full privileges of the Langflow server process.

Metadata

CVE ID
CVE-2026-8481
State
PUBLISHED
Assigner
ibm
Reserved
2026-05-13 13:52 UTC
Published
2026-07-17 19:10 UTC
Last updated
2026-07-17 19:40 UTC
Primary CWE
CWE-94
CWE-94 Improper Control of Generation of Code ('Code Injecti…
Vendor / Product
IBM / Langflow OSS
Sources
cve.org  ·  NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
IBM Langflow OSS — 1.0.0 ≤ 1.10.0
Weakness (CWE)
CWESourceDescription
CWE-94 cna CWE-94 Improper Control of Generation of Code ('Code Injection')
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.9 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References (1)
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