CVE-2026-55423: CWE-613: Insufficient Session Expiration in langflow-ai langflow
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.7.0, the logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in. This vulnerability is fixed in 1.7.0.
AI Analysis
Technical Summary
CVE-2026-55423 describes a vulnerability in langflow (langflow-ai) where versions before 1.7.0 do not properly clear user sessions upon logout. This insufficient session expiration (CWE-613) allows the previous user's session to persist, potentially exposing sensitive data or allowing unauthorized access. The vulnerability has a CVSS 3.1 base score of 6.1, indicating a medium severity with high confidentiality and integrity impact but no availability impact. The flaw is resolved in langflow version 1.7.0.
Potential Impact
An attacker or subsequent user on the same system may gain access to the previous user's session and associated data because the session remains active after logout. This can lead to unauthorized disclosure and modification of sensitive information. There is no impact on system availability.
Mitigation Recommendations
Upgrade langflow to version 1.7.0 or later, where the session expiration issue is fixed. No other mitigations are indicated. Patch status is not explicitly confirmed in the vendor advisory, but the fix is stated to be in 1.7.0.
CVE-2026-55423: CWE-613: Insufficient Session Expiration in langflow-ai langflow
Description
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.7.0, the logout button does not clear the session. The previous user stays logged in unless another user explicitly logs in. This vulnerability is fixed in 1.7.0.
CVSS v3.1
Score 6.1medium
Affected software
pkg:github/langflow-ai/langflowRun 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-2026-55423 describes a vulnerability in langflow (langflow-ai) where versions before 1.7.0 do not properly clear user sessions upon logout. This insufficient session expiration (CWE-613) allows the previous user's session to persist, potentially exposing sensitive data or allowing unauthorized access. The vulnerability has a CVSS 3.1 base score of 6.1, indicating a medium severity with high confidentiality and integrity impact but no availability impact. The flaw is resolved in langflow version 1.7.0.
Potential Impact
An attacker or subsequent user on the same system may gain access to the previous user's session and associated data because the session remains active after logout. This can lead to unauthorized disclosure and modification of sensitive information. There is no impact on system availability.
Mitigation Recommendations
Upgrade langflow to version 1.7.0 or later, where the session expiration issue is fixed. No other mitigations are indicated. Patch status is not explicitly confirmed in the vendor advisory, but the fix is stated to be in 1.7.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T21:48:43.126Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3ab6daeed863c81e4f9f20
Added to database: 06/23/2026, 16:39:54 UTC
Last enriched: 06/23/2026, 16:55:16 UTC
Last updated: 06/23/2026, 17:39:59 UTC
Views: 2
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