CVE-2026-19295
Received
Published: 28 Aug 2026, 20:53
Last modified:28 Aug 2026, 20:53
Vulnerability Summary
Overall Risk (default)
high
70/100 CVSS Score
9.9 CRITICAL
v3.1 (cve.org)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
28 Aug 2026, 20:53
Published
Vulnerability first disclosed
Description
IBM Langflow OSS 1.0.0 through 1.11.1 allows an authenticated attacker to execute arbitrary operating system commands in the server process by saving a flow with a crafted type field value and triggering a build of a wrapper flow that references it. This allowed privilege escalation from "authenticated flow user" to arbitrary OS-level command execution under the server process identity, bypassing the LANGFLOW_ALLOW_CUSTOM_COMPONENTS=false policy control.
CVSS Metrics
- v3.1•CRITICAL•Score: 9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Techniques & Countermeasures
- CWE-95•Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval").
Affected Systems
- ibm•langflow oss
≥ 1.0.0, ≤ 1.11.1