Critical severity · published Jul 17, 2026
CVE-2026-8635
Arbitrary Code Execution in Python Interpreter Component
9.9
CVSS
0.6%
EPSS
No
On KEV
Description
IBM Langflow OSS 1.0.0 through 1.10.0 allows authenticated users to escalate privileges to superuser by directly manipulating the database, execute arbitrary system commands, and achieve full system compromise with Langflow service permissions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% 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 1.10.0 · source: vendor
LA
Langflow · Langflow
1.0.0 before 1.10.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8635
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8635
Vendor Advisory
https://www.ibm.com/support/pages/node/7278925
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