CVE-2026-63506 Tina - Broken Access Control

Tina headless CMS prior to @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1 contains a broken access control caused by improper validation of bearer tokens against attacker-controlled client IDs, letting attackers perform unauthorized media and content operations across tenant boundaries without victim interaction.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.52% chance of exploitation in 30 days
View the NVD record ↗

Details

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

Vendor fix

Update to @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1 or later.

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

← All CVEs