EUVD-2026-94109
GHSA-xfjh-68gf-97jx
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable code injection needing only a low-privilege account (PR:L) and no interaction; low complexity, and RCE yields total confidentiality, integrity, and availability impact.
Primary rating from Vendor (ibm).
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
IBM Langflow OSS 1.0.0 through 1.12.2 could allow a remote authenticated attacker to execute arbitrary code due to improper neutralization of special elements used in code.
AnalysisAI
Authenticated code injection in IBM Langflow OSS 1.0.0 through 1.12.2 lets any remote user holding a valid low-privileged account execute arbitrary code on the hosting server, with high impact to confidentiality, integrity, and availability (CVSS 8.8, PR:L, no user interaction required). The attack surface is the code path where special elements used in code are not properly neutralized (CWE-94), so deployments that allow untrusted or self-registered accounts to author and run flows are the most exposed, while instances with closed registration and no internet exposure are materially less at risk. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to be a remote AUTHENTICATED user of IBM Langflow OSS (CVSS PR:L), targeting the code path where special elements used in code are improperly neutralized (CWE-94). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are moderately consistent and point to a serious-but-not-emergency issue. … 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 fix documented at IBM's advisory page https://www.ibm.com/support/pages/node/7290694 (patch available from vendor, exact fixed version not specified in the provided data; confirm the target release there before upgrading and validate any bundled flow/component changes). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all IBM Langflow OSS instances and identify any running versions 1.0.0 through 1.12.2, restrict network access to trusted users, disable self-registration and untrusted flow authoring where feasible, enforce least privilege for existing accounts, and review logs for unexpected code execution or flow modifications. …
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Same weakness CWE-94 – Code Injection
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External POC / Exploit Code
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