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IBM Langflow OSS CVE-2026-78571

| EUVDEUVD-2026-75799 HIGH
Code Injection (CWE-94)
2026-09-10 ibm GHSA-qfhm-pm4r-cjpm
RCE IBM Code Injection Langflow Oss
8.8
CVSS 3.1 · Vendor: ibm
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Severity by source

Vendor (ibm) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.8 HIGH

Network-reachable service, low-complexity eval() injection, requires only a valid low-privilege account, full host impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (ibm).

CVSS VectorVendor: ibm

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Sep 10, 2026 - 22:18 vuln.today
CVE Published
Sep 10, 2026 - 21:42 cve.org
HIGH 8.8

DescriptionCVE.org

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an unguarded eval() call on attacker-controlled input.

AnalysisAI

Remote code execution in IBM Langflow OSS 1.0.0 through 1.11.5 allows authenticated network attackers to run arbitrary operating system commands by supplying crafted input to an unguarded eval() call within the application. The root cause is CWE-94 code injection - attacker-controlled data is passed directly to a dynamic evaluation function without sanitization or sandboxing. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated session with at least low-privilege access to the IBM Langflow OSS instance (PR:L per CVSS vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately reflects the primary risk factors: the attack is fully network-reachable, requires no complexity, demands only a low-privilege account, and yields full confidentiality/integrity/availability impact on the host running the Langflow service. … 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 documented at https://www.ibm.com/support/pages/node/7286666 - this is the primary and preferred remediation. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all IBM Langflow deployments running versions 1.0.0-1.11.5, document user access levels, and assess exposure to untrusted or high-risk users. …

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CVE-2026-78571 vulnerability details – vuln.today
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