EUVD-2026-71266
GHSA-vw5f-qmfc-5q4v
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Network-exploitable SSRF with scope change to internal services; PR:L reflects required low-privilege authentication; C:H for internal data disclosure; I:N/A:N because SSRF impact here is read-only.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
2DescriptionCVE.org
IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information from internal services due to a URL parser discrepancy.
AnalysisAI
Server-Side Request Forgery in IBM Langflow OSS 1.0.0 through 1.11.2 enables authenticated remote attackers to exploit a URL parser discrepancy, causing the application to issue unauthorized backend requests to internal services and expose sensitive information beyond the application's trust boundary. The CVSS scope-change metric (S:C) confirms that impact extends past the Langflow instance itself to internal network resources not directly reachable by the attacker. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated account on the IBM Langflow OSS instance (PR:L per CVSS vector), meaning anonymous or unauthenticated access is insufficient. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.7 score reflects meaningful real-world risk: the vulnerability is network-exploitable (AV:N), low complexity (AC:L), requires only low-privilege authentication (PR:L), needs no user interaction (UI:N), produces a scope change (S:C), and carries high confidentiality impact (C: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 security advisory https://www.ibm.com/support/pages/node/7285639 - patch availability is confirmed, but the precise fixed version number must be verified there directly. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all instances of IBM Langflow OSS in your infrastructure and document the currently deployed versions; immediately restrict network access from Langflow deployments to only essential internal services while remediation is planned. …
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Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
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