CVE-2026-13435 json
Python Interpreter Sandbox Bypass Leading to Sensitive Data Exposure
published 2026-07-30 3 mo ago modified 2026-10-23 16 d ago also EUVD-2026-51244
- cvss
- 9.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox implementation.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
- IBM Langflow OSS
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
ibm.com
/support/pages/node/7279987
vendor-advisory, patch
Sources
- CVE List CVE-2026-13435
- NVD CVE-2026-13435
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.