Is CVE-2026-6542 actively exploited?

No active exploitation of CVE-2026-6542 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6542 be exploited remotely?

Yes. CVE-2026-6542 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6542?

CVE-2026-6542 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2026-6542

CWE-639Published: April 30, 2026· Updated: May 4, 2026

8.1

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:7.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-6542 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.