CVE-2024-34451: Ghost through 5.85.1 allows remote attackers to bypass an authentication rate-limit protection mechanism by us

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CRITICAL 9.1REMOTEUPGRADE

CVE-2024-34451 is a critical-severity flaw (CVSS 9.1) affecting ghost. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-1390
Published	2024-06-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ghost

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-06-16 22:15 UTCPublished CVE record published
2026-06-17 07:33 UTCUpdated Record last modified

ghost ghost UPGRADE

Affected: <= 5.85.1

Fixed in: newer than 5.85.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls ghost

2. UPGRADE to newer than 5.85.1

npm install ghost@">5.85.1"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-34451?

ghost: upgrade to newer than 5.85.1. Exact commands for each OS are on this page.

Is CVE-2024-34451 being exploited?

CVE-2024-34451 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-34451 affect?

CVE-2024-34451 affects ghost. Severity is critical (CVSS 9.1). 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 rever

How urgent is CVE-2024-34451?

Priority 56/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-29784 HIGH 7.5 UPGRADE Ghost is a Node.js content management system
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CVE-2026-26980 CRITICAL 9.4 UPGRADE Ghost is a Node.js content management system
CVE-2026-24778 HIGH 8.8 UPGRADE UPGRADE Ghost is an open source content management system
CVE-2024-43409 MEDIUM 6.5 UPGRADE Ghost is a Node.js content management system

References

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