Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L L N U H H H 8.8 .0036 28.9 —
AFFECTED Product Versions Fixed langflow < 1.9.0 – —
TIMELINE Mar 23 Reserved by GitHub_M Jun 23 EXPLOIT PUBLISHED — CVE-2026-33760 (langflow-ai langflow). Public exploit reference added. Jun 23 Published (CNA: GitHub_M)
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.0, Langflow's /api/v1/monitor router exposes 7 endpoints that perform read, write, and delete operations on user-owned resources — messages, sessions, build artifacts, and LLM transaction logs — without verifying that the authenticated requester owns the targeted resource. Any authenticated user can read, modify, rename, or permanently delete another user's data by supplying the target's resource ID or flow_id. This is a classic IDOR/BOLA vulnerability. Notably, the same source file (monitor.py) contains one correctly-implemented endpoint that uses an ownership check, demonstrating the correct pattern was known but inconsistently applied. This vulnerability is fixed in 1.9.0.
| Date | Event | Detail |
|---|---|---|
| March 23, 2026 | Reserved | Reserved by GitHub_M |
| June 23, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-33760 (langflow-ai langflow). Public exploit reference added. |
| June 23, 2026 | Published | Published (CNA: GitHub_M) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| langflow-ai | langflow | — | < 1.9.0 | — |
Authoritative record: CVE-2026-33760 at cve.org
Vendors: langflow-ai
Weaknesses: CWE-639
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-33760 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.