What is CVE-2026-85389?

CVE-2026-85389 is a medium-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-09-03.

How severe is CVE-2026-85389?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CVE-2026-85389

CVE-2026-85389

Worklenz before 3.0.0 fails to verify task ownership by organization when resolving task-scoped API endpoints, allowing authenticated users to access another tenant's task data. Attackers can query task endpoints with arbitrary task UUIDs to retrieve work logs, comments, attachments, and project insights belonging to other organizations.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com

Frequently asked questions

What is CVE-2026-85389?: CVE-2026-85389 is a medium-severity vulnerability, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-09-03.
How severe is CVE-2026-85389?: Medium severity. CVSS v3 base score is 6.5 out of 10.