CVE-2026-72587
Medium
Description
A cache poisoning vulnerability in CoreBunch/Instatic through 0.0.14 allows an unauthenticated remote attacker to poison the shared process-wide render cache by manipulating the u query parameter of the GET /_instatic/hole/<nodeId> server island endpoint.
SeverityMedium
CVSS6.1
Exploit probability—
ProductInstatic
PublishedAug 10, 2026
First seenAug 10, 2026
Weakness typeCWE-444CWE-444
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| CoreBunch Instatic | v ≤ 0.0.14 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.