PT-2026-36200 · Ibm · Langflow Oss

Published 2026-04-30 · Updated 2026-05-01 · CVE-2026-6542

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.8.4

Description An issue exists where any user can provide a flow id to read transaction logs and vertex build data belonging to other users. Additionally, this allows for the deletion of persisted vertex build data associated with another user's flow.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2026-6542

Affected Products

Langflow Oss

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-6542 · Security Note
• https://t.me/CVEtracker/52360 · Telegram Post
• https://ibm.com/support/pages/node/7270886 · Patch, Vendor Advisory
• https://twitter.com/infoflowcloud/status/2049972424825778240 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2049992707989266611 · Twitter Post
• https://twitter.com/CVEnew/status/2049970627445133709 · Twitter Post