CVE-2026-81268: IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive
highvulnerability
security
Summary
IBM Langflow OSS (an open-source tool for building AI applications) versions 1.0.0 through 1.11.5 has a security flaw where API keys (credentials that grant access to the system) don't expire when a user account is deactivated, allowing a former user to still run workflows and access sensitive data.
Vulnerability Details
CVSS Score
8.1(high)
EPSS (30-day exploit probability)
EPSS: 0.0%
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
network
Attack Complexity
low
Privileges Required
low
User Interaction
none
Disclosure Date
September 10, 2026
Classification
Attack Type
Other
Attack SophisticationTrivial
Impact (CIA+S)
confidentialityintegrity
Taxonomy References
CWE (Weakness Type)
Affected Vendors
Related Issues
Monthly digest — independent AI security research
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-81268
First tracked: September 10, 2026 at 08:08 PM
Classified by LLM (prompt v3) · confidence: 95%