ADVISORY UNAUTH-2026-0045
TYPE cve
PRODUCT Langflow
SEVERITY CRITICAL

CRITICAL

Langflow CVE-2026-55255

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

Why it matters

IDOR in /api/v1/responses: any authenticated user can execute another user's flows by ID, harvesting embedded credentials and API keys. Actively exploited (CISA KEV). CVSS 9.9 (vendor) / 8.4 (NVD).

Affected versions

<1.9.1

Fixed in: 1.9.1

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

Fix it

Fix card: cve-2026-55255 →

References

https://github.com/advisories/GHSA-qrpv-q767-xqq2

Cite this record

unauth.dev advisory UNAUTH-2026-0045 — published 2026-08 · CC-BY 4.0

Canonical URL: https://unauth.dev/advisories/UNAUTH-2026-0045. 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.