ADVISORY UNAUTH-2026-0043
TYPE cve
PRODUCT Langflow
SEVERITY CRITICAL

CRITICAL

Langflow CVE-2025-3248

published 2026-08-05 · updated 2026-08-05

Why it matters

Unauthenticated code injection in /api/v1/validate/code: the endpoint executes attacker-supplied Python. Remote code execution with no login. Actively exploited (CISA KEV). CVSS 9.8.

Affected versions

<1.3.0

Fixed in: 1.3.0

Mapping provenance: human-verified against the linked advisory, last checked 2026-07-29. CISA KEV listed as actively exploited.

Fix it

Fix card: cve-2025-3248 →

References

https://nvd.nist.gov/vuln/detail/CVE-2025-3248

Cite this record

unauth.dev advisory UNAUTH-2026-0043 — published 2026-08 · CC-BY 4.0

Canonical URL: https://unauth.dev/advisories/UNAUTH-2026-0043. This record is part of the unauth.dev advisory dataset, published under CC-BY 4.0: attribute "unauth.dev / Raúl Acedo". Schema: additive-only within v1; this id will never be renumbered or reused.