CVE-2026-10134
Critical10.0Langflow OSS: Unauthenticated Server-Side RCE via PythonCodeStructuredTool in Public Flowstitle from the CVE record
IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read and modify every flow, conversation, message, file upload, and saved component in the Langflow database, can connect to internal services, abuse cloud metadata endpoints, laterally move to other tenants on the same Langflow instance, and Establish persistence by modifying the public flow's `tool_code` so normal `/api/v1/build/...` calls by any user re-execute attacker code at each build.
- CVSS
- 10.0v3.1
- EPSS (exploit probability)
- 1.6%76th pct
- CISA KEV
- Not listed
EPSS trendFIRST daily scores, last 90 days
Daily values
| Score date | EPSS | Percentile |
|---|---|---|
| 2026-10-23 | 1.6% | 75.7% |
| 2026-10-22 | 1.6% | 75.7% |
| 2026-10-21 | 1.6% | 75.6% |
| 2026-10-20 | 0.6% | 49.8% |
| 2026-10-19 | 0.6% | 49.7% |
| 2026-10-18 | 0.6% | 49.7% |
| 2026-10-17 | 0.6% | 49.7% |
| 2026-10-16 | 0.6% | 49.6% |
| 2026-10-15 | 0.6% | 49.6% |
| 2026-10-14 | 0.6% | 49.5% |
| 2026-10-13 | 0.6% | 49.3% |
| 2026-10-12 | 0.6% | 49.2% |
| 2026-10-11 | 0.6% | 49.2% |
| 2026-10-10 | 0.6% | 49.2% |
| 2026-10-09 | 0.6% | 49.1% |
| 2026-10-08 | 0.6% | 49.1% |
| 2026-10-07 | 0.6% | 49.1% |
| 2026-10-06 | 0.6% | 49.0% |
| 2026-10-05 | 0.6% | 48.9% |
| 2026-10-04 | 0.6% | 48.9% |
| 2026-10-03 | 0.6% | 48.9% |
| 2026-10-02 | 0.6% | 48.8% |
| 2026-10-01 | 0.6% | 48.8% |
| 2026-09-30 | 0.6% | 48.7% |
| 2026-09-29 | 0.6% | 48.6% |
| 2026-09-27 | 0.6% | 48.6% |
| 2026-09-26 | 0.6% | 48.6% |
| 2026-09-25 | 0.6% | 48.5% |
| 2026-09-24 | 0.6% | 48.4% |
| 2026-09-23 | 0.6% | 49.3% |
| 2026-09-22 | 0.6% | 49.3% |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Learn
Why it happened and what stops it
The weakness (CWE)
How attackers use it (ATT&CK)
Typical for this kind of weakness across CISA KEV exploits (CTID), not specific to this CVE.
How it's exploited
What the attacker gets
Controls that mitigate it (NIST SP 800-53)
- SI-4System MonitoringSystem and Information Integrity · mitigates 9 of these techniques
- CM-6Configuration SettingsConfiguration Management · mitigates 8 of these techniques
- SI-3Malicious Code ProtectionSystem and Information Integrity · mitigates 8 of these techniques
- AC-6Least PrivilegeAccess Control · mitigates 7 of these techniques
- AC-2Account ManagementAccess Control · mitigates 6 of these techniques
- AC-3Access EnforcementAccess Control · mitigates 6 of these techniques
Affected products
- langflow langflow