CVE-2026-93678: CWE-639 Authorization Bypass Through User-Controlled Key in IBM Langflow OSS
Description
IBM Langflow OSS versions 1.0.0 through 1.12.2 contain an authorization bypass vulnerability (CWE-639) that could allow a remote authenticated attacker to obtain sensitive information. The flaw arises from improper authorization checks related to user-controlled keys. This vulnerability has a high severity with a CVSS score of 7.6.
CVSS v3.1
Score 7.6high
Affected software
IBM
Langflow OSS
pkg:github/ibm/langflow_osscpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:langflow_oss:1.12.2:*:*:*:*:*:*:*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-2026-93678 affects IBM Langflow OSS versions 1.0.0 through 1.12.2. The vulnerability is classified as CWE-639 (Authorization Bypass Through User-Controlled Key). It allows a remote attacker with valid authentication privileges to bypass authorization controls and access sensitive information improperly. The CVSS v3.1 base score is 7.6, indicating high severity, with attack vector network, low attack complexity, requiring privileges, no user interaction, unchanged scope, limited confidentiality impact, high integrity impact, and low availability impact.
Potential Impact
A remote authenticated attacker can bypass authorization mechanisms and access sensitive information that should be protected. This could lead to unauthorized disclosure of data and potential integrity issues within the affected system.
Mitigation Recommendations
No official patch or remediation details are provided in the available data. Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Until a fix is available, restrict access to trusted users and monitor for suspicious activity related to authorization bypass attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-09-18T13:54:10.189Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac5937c2cdf04f656f90958
Added to database: 10/07/2026, 00:34:04 UTC
Last enriched: 10/07/2026, 00:48:36 UTC
Last updated: 10/07/2026, 00:48:53 UTC
Views: 7
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