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CVE-2026-55423

Langflow: Logout button does not clear session

MEDIUM
6.1
CVSS Score
Published: June 23, 2026 at 04:27 PM UTC
Updated: October 25, 2026 at 11:10 PM UTC
2 products affected across 2 vendorsLangflowLangflow

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Langflow· Langflow
95%
v < 1.7.0
Affected range stops below 1.7.0, so it looks safe — our inference, not a vendor statement
Langflow· Langflow AI
90%
v < 1.7.0
Affected range stops below 1.7.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_CONFIRMVendor AdvisoryExploitPatch
Source: cverecord
https://github.com/langflow-ai/langflow/security/advisories/GHSA-7hw8-6q6r-4276
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/langflow-ai/langflow/pull/10527
x_refsource_MISCIssue TrackingExploit
Source: cverecord
https://github.com/langflow-ai/langflow/pull/10528

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMGitHub_M
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-613

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