Improper access control in Islandora - CVE-2026-84916
Published: September 3, 2026
Vulnerability identifier: #VU146849
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-84916
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected module does not sufficiently check block access when arbitrary block ID's are submitted to its publicly accessible AJAX endpoint. A remote attacker can retrieve restricted block content.
Affected software
Islandora
How to mitigate CVE-2026-84916
Install updates from vendor's website.
Islandora - update to 2.19.0