CVE-2026-7787: CWE-639 Authorization Bypass Through User-Controlled Key in IBM Langflow OSS
IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references.
AI Analysis
Technical Summary
CVE-2026-7787 is an authorization bypass vulnerability in IBM Langflow OSS versions 1.0.0 through 1.9.1. The issue arises from insecure direct object references (CWE-639), which permit an authenticated user to bypass authorization controls and access or modify sensitive data. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity. No vendor-provided patch or official remediation level has been published as of now. The product is not a cloud service, so remediation depends on user-side patching once available.
Potential Impact
An authenticated user can bypass authorization mechanisms to read or modify sensitive information within IBM Langflow OSS. This could lead to unauthorized data exposure or alteration, potentially compromising confidentiality and integrity of the affected system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to trusted authenticated users only and monitor for suspicious activity related to object references. Avoid exposing the affected versions in untrusted environments.
CVE-2026-7787: CWE-639 Authorization Bypass Through User-Controlled Key in IBM Langflow OSS
Description
IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references.
CVSS v3.1
Score 7.5high
Affected software
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:langflow_oss:1.9.1:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-7787 is an authorization bypass vulnerability in IBM Langflow OSS versions 1.0.0 through 1.9.1. The issue arises from insecure direct object references (CWE-639), which permit an authenticated user to bypass authorization controls and access or modify sensitive data. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity. No vendor-provided patch or official remediation level has been published as of now. The product is not a cloud service, so remediation depends on user-side patching once available.
Potential Impact
An authenticated user can bypass authorization mechanisms to read or modify sensitive information within IBM Langflow OSS. This could lead to unauthorized data exposure or alteration, potentially compromising confidentiality and integrity of the affected system. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to trusted authenticated users only and monitor for suspicious activity related to object references. Avoid exposing the affected versions in untrusted environments.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-05-04T16:07:56.098Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a2ad481815e7002b800a893
Added to database: 6/11/2026, 3:30:09 PM
Last enriched: 6/11/2026, 3:45:07 PM
Last updated: 6/11/2026, 6:21:32 PM
Views: 6
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