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IBM Langflow OSS EUVDEUVD-2026-71269

| CVE-2026-19302 MEDIUM
Path Traversal (CWE-22)
2026-09-04 ibm GHSA-7j2r-wcp8-6mjf
Path Traversal IBM Langflow Oss
6.5
CVSS 3.1 · Vendor: ibm
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Severity by source

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

Network-reachable with low authentication required; read-only symlink traversal yields high confidentiality impact but no integrity or availability effect.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/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
None
Availability
None

Lifecycle Timeline

1
Analysis Generated
Sep 04, 2026 - 16:20 vuln.today

DescriptionCVE.org

IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to obtain sensitive information due to improper validation of symbolic links.

AnalysisAI

Sensitive file disclosure in IBM Langflow OSS 1.0.0 through 1.11.2 allows authenticated remote attackers to read arbitrary files on the server by exploiting improper validation of symbolic links. The flaw, classified under CWE-22 (Path Traversal), enables an attacker with valid credentials to escape intended directory boundaries by manipulating symlink resolution, potentially exposing configuration files, credentials, or other sensitive server-side content. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated session in IBM Langflow OSS (PR:L per CVSS vector) - unauthenticated access is not sufficient. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS base score of 6.5 (Medium) reflects a genuinely constrained risk profile: the attack requires valid authentication (PR:L), which eliminates unauthenticated mass exploitation. … 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 as directed by IBM's advisory at https://www.ibm.com/support/pages/node/7285641. … Detailed patch versions, workarounds, and compensating controls in full report.
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Same weakness CWE-22 – Path Traversal

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Same technique Path Traversal

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EUVD-2026-71269 vulnerability details – vuln.today
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