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CVE-2026-55423

Status: AnalyzedMedium (6.1)—

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

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Langflow — Langflow

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-55423",
  "cveTags": [],
  "metrics": {
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          ],
          "version": "2.0.3",
          "timestamp": "2026-06-23T17:06:31.440801Z"
        }
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          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.2,
        "exploitabilityScore": 0.9
      }
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      "affectedData": [
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  "published": "2026-06-23T17:17:08.283",
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      "description": [
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    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-06-24T13:50:27.530",
  "configurations": [
    {
      "nodes": [
        {
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