CVE-2026-10560CWE-287

Unauthenticated Access to Private Flow Build Events and Cancellation in Langflow OSS

High · published June 30, 2026

CVSS v3.1
8.2
EPSS
0%
Percentile
40.7
In the wild
Unconfirmed
What it is

IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/build_public_tmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00484 · 40.7th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-06-30T19:53Z
EPSS history
Timeline
  • 30 JUN 19:53Z
    Unauthenticated Access to Private Flow Build Events and Cancellation in Langflow OSS
    cvelistv5