Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection
Priority MEDIUM 50CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution, Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94 and CWE-266.
Summary
IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compromise
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0082 57th percentileScored 2026-11-07
Fix Fixed langflow (PyPI): 1.10.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 – 1.9.3 | — | No fix listed | CNA |
| — | langflow (PyPI) | before 1.10.1 | 1.10.1 | Patch available | GHSA-8qpj-27x8-pwpq |
- Langflow OSS VendorIBM Affected 1.0.0 – 1.9.3 Fixed in — No fix listed CNA
- langflow (PyPI) Vendor— Affected before 1.10.1 Fixed in 1.10.1 Patch available GHSA-8qpj-27x8-pwpq
Remediation
- Fix · GHSA-8qpj-27x8-pwpq langflow (PyPI) Fixed in 1.10.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-10561
- 2026-10-03 Alias added: GHSA-frvg-495w-m47v
- 2026-10-06 Alias added: GHSA-8qpj-27x8-pwpq
- 2026-10-06 Fix available: PyPI/[email protected] · GHSA-8qpj-27x8-pwpq
- 2026-10-06 CVSS score added · GHSA-8qpj-27x8-pwpq
- 2026-10-06 Weakness changed · GHSA-8qpj-27x8-pwpq
- 2026-10-06 7 new references · GHSA-8qpj-27x8-pwpq
References
Other 5
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-8qpj-27x8-pwpq
- https://github.com/langflow-ai/langflow/pull/13700
- https://github.com/langflow-ai/langflow/commit/2754c84aad1306f463db1c3bbb3e8ffbe85da77d
- https://github.com/langflow-ai/langflow
- https://github.com/langflow-ai/langflow/releases/tag/v1.10.1
More IBM vulnerabilities
- TI-2026-08085 Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation KEVCVSS 3.1CRITICAL 9.8
- TI-2022-23774 IBM Aspera Faspex code execution KEVCVSS 3.1CRITICAL 9.8
- TI-2020-03794 Improper authentication in IBM Data Risk Manager KEVCVSS 3.1CRITICAL 9.8
- TI-2019-03441 Code injection in IBM Planning Analytics KEVCVSS 3.1CRITICAL 9.8
- TI-2017-03639 Improper handling of exceptional conditions in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-10561 · CVE Program
- CVE-2026-10561 · NVD
- FIRST EPSS
- GHSA-8qpj-27x8-pwpq · GitHub Advisory Database · CC BY 4.0
- GHSA-frvg-495w-m47v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences