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Critical

Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code

Type: advisorySource: Official CVE ListKnown exploited1 source record

Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.

Announced Source revision 1
Original source ↗

CVE-2025-3248

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2025-3248

langflow

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/langflow-ai/langflow",
    "vendor": "langflow-ai",
    "product": "langflow",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.3.0",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:pypi/langflow",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2025-3248

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2025-3248 · Unrated

Langflow · Known exploited (CISA KEV)

Event
#12625 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement