CVE-2026-85389

Medium

Description

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductWorklenz

PublishedSep 3, 2026

First seenSep 3, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

Worklenz worklenz3.0.0 or later

Patches

github.com/Worklenz/worklenz/commit/f088ad0e36a23bb52857b46b3d4ce2533daeb65f

Vendor advisories

github.com/Worklenz/worklenz/releases/tag/v3.0.0

Affected products

Product	Affected versions	Fixed in
Worklenz worklenz	v < 3.0.0	3.0.0

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