CVE-2026-52466
Critical
Description
Open Library Foundation VuFind v11.0.3 and v4.1 is vulnerable to toInorrect Access Control. The application fails to stop processing an incoming request in VuFind\Controller\AbstractBase::validateAccessPermission after it has found that controller level access permissions do not allow access to the requested function. The requester receives a response indicating that access was denied, but the actual function is executed regardless of that.
SeverityCritical
CVSS9.8
Exploit probability—
Product
VuFind
PublishedAug 6, 2026
First seenAug 6, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Open Library Foundation VuFind | 11.0.3, 4.1 | — |
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