Critical severity · published Sep 10, 2026
CVE-2026-85025
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions and session isolation controls.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LO
Langflow OSS · IBM
1.0.0 through 1.11.5 · source: vendor
LA
Langflow · Langflow
1.0.0 before 1.11.6 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-85025
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-85025
Vendor Advisory
https://www.ibm.com/support/pages/node/7286666
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