Vulnerability · Published Jun 23, 2026 · Assigned by GitHub_M
CVE-2026-55423Langflow: Logout button does not clear session
Medium 6.1
In plain English
A medium-severity security flaw in langflow from langflow-ai. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 87.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | langflow | 1.7.0 | GHSA-7hw8-6q6r-4276 |
| PyPI | langflow | 1.7.0 | PYSEC-2026-222 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| langflow-ai | langflow | < 1.7.0 |
Weakness: CWE-613 · Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
References
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-7hw8-6q6r-4276 x_refsource_CONFIRM
- https://github.com/langflow-ai/langflow/pull/10527 x_refsource_MISC
- https://github.com/langflow-ai/langflow/pull/10528 x_refsource_MISC