CVE-2026-72587
Instatic - Cache Poisoning via Unauthenticated Server Island Endpoint
- State
- Published
- Severity
- 6.1 Medium
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Reserved
- Aug 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | TuranSec |
Weaknesses
- CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Affected Products
| Product | Versions |
|---|---|
InstaticCoreBunch |
|
References
- Productthird-party-advisory
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