Vulnerability Intelligence Report
Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure
CVE-2026-13435
IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox implementation.
No Active Exploit Signals
CVSS Base Score
9.9
CRITICAL
Exploitability:3.2
Impact Score:6.1
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-94 ↗CWE-94 Improper Control of Generation of Code ('Code Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| IBM | Langflow OSS | 1.0.0 <= 1.10.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | IBM Corporation · Vendor · USA |
| Reserved | 2026-06-26T15:01:44 |
| Published | 2026-07-30T16:48:36 |
| Last Updated | 2026-07-31T03:56:17 |
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