CVE-2026-72587

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Source

https://cve.org/CVERecord?id=CVE-2026-72587

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72587.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-72587

Published

2026-08-10T10:41:36Z

Modified

2026-10-28T02:30:59Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

Instatic - Cache Poisoning via Unauthenticated Server Island Endpoint

Details

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.

Database specific

{
    "cna_assigner": "TuranSec",
    "cwe_ids": [
        "CWE-444"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72587.json"
}

References

Affected packages

Git / github.com/corebunch/instatic

Affected ranges

Type

GIT

Repo

https://github.com/corebunch/instatic

Events

Introduced

Last Affected

d1f0942b1c1eb8842b032e6718bfbdabf25cd6d0

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "0.0.14"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "0.0.14"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

v0.*

v0.0.1

v0.0.10

v0.0.11

v0.0.12

v0.0.13

v0.0.14

v0.0.2

v0.0.3

v0.0.4

v0.0.5

v0.0.6

v0.0.7

v0.0.8

v0.0.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72587.json"