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Vulnerability record · CVE-2024-34451 · published 16 June 2024

CVE-2024-34451: Ghost vulnerability

Ghost · Ghost

Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit protection mechanism by using many X-Forwarded-For headers with different values. NOTE: the vendor's position is that Ghost should be installed with a reverse proxy that allows only trusted X-Forwarded-For headers.

9.1 CVSS 3.1 Critical EPSS 0.77% · top 46.3% CWE-1390 · CWE-1390
9.1CVSS 3.1 base score
0.77%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit protection mechanism by using many X-Forwarded-For headers with different values. NOTE: the vendor's position is that Ghost should be installed with a reverse proxy that allows only trusted X-Forwarded-For headers.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://docs.google.com/document/d/1iy0X4Vc9xXYoBxFrcW6ATo8GKPV6ivuLVzn6GgEpwqE Exploit
https://ghost.org/docs/faq/proxying-https-infinite-loops/ Product
https://github.com/TryGhost/Ghost/releases Product
https://docs.google.com/document/d/1iy0X4Vc9xXYoBxFrcW6ATo8GKPV6ivuLVzn6GgEpwqE Exploit
https://ghost.org/docs/faq/proxying-https-infinite-loops/ Product
https://github.com/TryGhost/Ghost/releases Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-34451), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.