CVE-2026-81211CWE-862broken-access-control

CVE-2026-81211

High · published September 11, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
45.8
In the wild
Unconfirmed
What it is

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary Python code due to improper authorization of custom components in stored flows.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00559 · 45.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-11T02:17Z
Affected products (1)
ProductVersionsFixed in
langflow/langflow≥ 1.0.0, < 1.11.61.11.6
References (1)
https://www.ibm.com/support/pages/node/7286666 · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 21:34Z
    Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
    cvelistv5