CVE-2026-18894
Medium
Description
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to trigger pre-existing stored Python component code in a public workflow, executing it under the flow owner's runtime context within the server process. This bypasses the intended trust boundary where public execution paths are restricted to server-trusted component code.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Langflow
PublishedOct 29, 2026
First seenNov 4, 2026
Weakness typeCWE-94Code injection
How to fix
Update
- langflow langflow1.12.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| langflow langflow | 1.0.0 ≤ v < 1.12.5 | 1.12.5 |
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