Medium severity6.1OSV Advisory· Published Aug 10, 2026· Updated Aug 28, 2026
CVE-2026-72587
CVE-2026-72587
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/ server island endpoint.
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Affected products
2Patches
Vulnerability mechanics
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