CVE-2026-49464 NL Portal Backend Libraries nl.nl-portal:taak - Broken Access Control

NL Portal Backend Libraries nl.nl-portal:taak 1.5.0 through 3.0.0 contains a broken access control vulnerability caused by failure to verify ownership in submitTaakV2 GraphQL mutation, letting authenticated users read, overwrite, and complete other users' tasks, exploit requires authentication.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Data Tampering, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
11 September 2026
Updated
15 October 2026
Weakness
CWE-639

Vendor fix

Upgrade to version 3.0.1 or later; alternatively, block submitTaakV2 mutation or restrict /graphql endpoint to trusted networks.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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