VDB

CVE-2025-3248

CVE-2025-3248 PUBLISHED CVSS 9.8 CRITICAL

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

Reported by vulncheck · Published April 7, 2025

langflow-base is fixed in 0.3.0 (PyPI)

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
langflow-basePyPI0.3.0
langflowlangflow1.3.0

Risk scores

CVSS 3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersions
langflow-ailangflow0
PyPIlangflow-base0
langflowlangflow0
langflow-ailangflow0
PyPIlangflow0

Timeline

  • Apr 7, 2025 CVE Published
  • Apr 7, 2025 PoC Published (223 in total, the first dated here)
  • Apr 8, 2025 EPSS Score (30 in total, the first dated here)
  • Apr 10, 2025 VulnCheck XDB Entry (29 in total, the first dated here)
  • Apr 12, 2025 VulnCheck KEV Exploitation (443 in total, the first dated here)
  • May 5, 2025 CISA KEV Added
  • Mar 9, 2026 Security Advisory
  • Jun 12, 2026 Coalition ESS Score
  • Oct 8, 2026 CVE Updated
  • Oct 20, 2026 CrowdSec Sighting (3 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2025-3248
vulnetix vdb fixes CVE-2025-3248

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2025-3248/fixes/registry"

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References

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