CVE-2026-53945

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Source

https://cve.org/CVERecord?id=CVE-2026-53945

Import Source

https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53945.json

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2026-53945

Aliases

GHSA-ch52-px8q-f22j

Published

2026-06-24T18:09:34.909Z

Modified

2026-06-26T03:55:24.861527819Z

Severity

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

Summary

Ghost: Server-side request forgery via DNS rebinding in external request handling

Details

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, Ghost’s private-IP check for outbound HTTP requests could be bypassed via DNS rebinding, allowing an attacker to coerce the Ghost server into reaching hosts on internal networks through features that issue external fetches. This vulnerability is fixed in 6.21.1.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53945.json",
    "cwe_ids": [
        "CWE-367",
        "CWE-918"
    ],
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/tryghost/ghost

Affected ranges

Type

GIT

Repo

https://github.com/tryghost/ghost

Events

Introduced

c076dcc64d4af99dca0ecc380d5f4df04fc2a0fd

Fixed

1d36c589d39f979327106bbcfb4cece7abaea502

Database specific

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "6.0.9"
        },
        {
            "fixed": "6.21.1"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53945.json"