CVE-2026-6542 | THREATINT

Description

IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow.

PUBLISHED Reserved 2026-04-17 | Published 2026-04-30 | Updated 2026-05-01 | Assigner ibm

MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

1.0.0 (semver)

affected

References

www.ibm.com/support/pages/node/7270886 vendor-advisory patch

cve.org (CVE-2026-6542)

nvd.nist.gov (CVE-2026-6542)

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