EUVD-2026-75781
GHSA-m6qv-7wcf-v4qx
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-accessible, low-complexity exploit requiring only authenticated low-privilege user; arbitrary code execution yields full C/I/A impact on the server.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
3DescriptionCVE.org
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary Python code due to improper authorization of custom components in stored flows.
AnalysisAI
Arbitrary Python code execution in IBM Langflow OSS 1.0.0-1.11.5 is possible for any authenticated low-privileged user by embedding malicious code in custom components within stored flows. The root cause is a missing server-side authorization check (CWE-862) - the platform executes custom Python component logic without verifying whether the caller has sufficient privileges to run arbitrary code, not a failure to authenticate them. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated user account with at least low-privilege access to the Langflow instance (CVSS PR:L). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 3.1 scores this 8.8 (High) with AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patch per IBM support advisory https://www.ibm.com/support/pages/node/7286666. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all IBM Langflow OSS deployments, document installed versions, and review access control lists to identify which users hold authenticated credentials. …
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Same weakness CWE-862 – Missing Authorization
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External POC / Exploit Code
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