CVE-2026-22594: Ghost Ghost Has Staff 2FA Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-5fp7-g646-ccf4
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CVSS 8.1
CWE-287
Published
Advisory Summary

CVE-2026-22594 is a HIGH (CVSS 8.1) ghost has staff 2fa bypass vulnerability (CWE-287: Improper Authentication) affecting Ghost libraries in the npm ecosystem. The issue involves ghost has staff 2fa bypass. Remediation is available by upgrading affected packages to version 6.11.0, 5.130.6.

CVE-2026-22594 at a Glance

CVE Identifier CVE-2026-22594
GHSA Identifier GHSA-5fp7-g646-ccf4
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-287: Improper Authentication
Affected Product Ghost
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-22594

To remediate this vulnerability, upgrade all affected Ghost dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

ghost fixed: 6.11.0 
npm install ghost@6.11.0
ghost fixed: 5.130.6 
npm install ghost@5.130.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls ghost

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-22594, inspect your project dependencies using npm:

npm ls ghost

Analyze the terminal output to locate any version of Ghost in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.11.0), your application is affected.

Note: The npm ls ghost command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Ghost, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact A vulnerability in Ghost's 2FA mechanism allows staff users to skip email 2FA. ### Vulnerable versions This vulnerability is present in Ghost v5.105.0 to v5.130.5 to and Ghost v6.0.0 to v6.10.3. ### Patches v5.130.6 and v6.11.0 contain a fix for this issue. ### References Ghost thanks Sho Odagiri of GMO Cybersecurity by Ierae, Inc. for discovering and disclosing this vulnerability responsibly. ### For more information If there are any questions or comments about this advisory, email Ghost at [security@ghost.org](mailto:security@ghost.org).

CVE-2026-22594 Affected Ghost Versions

2 component(s)
Fixed Versions:
6.11.05.130.6
Product / Package Ecosystem Affected Versions Fixed Version
ghost
npm/ghost
npm
≥ 6.0.0
< 6.11.0
6.11.0
ghost
npm/ghost
npm
≥ 5.105.0
< 5.130.6
5.130.6

References

GitHub Advisory / Wiki ADVISORY
https://github.com/TryGhost/Ghost/security/advisories/GHSA-5fp7-g646-ccf4
NVD — CVE-2026-22594 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22594
Security Fix Commit FIX COMMIT
https://github.com/TryGhost/Ghost/commit/b59f707f670e6f175b669977724ccf16c718430b
Security Fix Commit FIX COMMIT
https://github.com/TryGhost/Ghost/commit/fc7bc2fb0888513498154ec5cb4b21eccb88de07
Ghost Source Repository REPOSITORY
https://github.com/TryGhost/Ghost

Frequently Asked Questions

What is CVE-2026-22594?
CVE-2026-22594 is a security vulnerability in Ghost involving Ghost has Staff 2FA bypass under CWE-287: Improper Authentication.
Which Ghost versions are affected?
Affected versions include releases prior to 6.11.0, 5.130.6 across affected packages: ghost.
What version fixes CVE-2026-22594?
Upgrading to 6.11.0, 5.130.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ghost affected?
Yes, ghost is affected in releases prior to 6.11.0, 5.130.6. Upgrade your dependency to 6.11.0, 5.130.6 or later.
What is the CVSS score of CVE-2026-22594?
CVE-2026-22594 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-22594?
CVE-2026-22594 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check npm dependencies for CVE-2026-22594?
Run the dependency tree command: 'npm ls ghost'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5fp7-g646-ccf4",
  "modified" : "2026-01-11T14:54:23Z",
  "published" : "2026-01-08T21:29:47Z",
  "aliases" : [ "CVE-2026-22594" ],
  "summary" : "Ghost has Staff 2FA bypass",
  "details" : "### Impact\nA vulnerability in Ghost's 2FA mechanism allows staff users to skip email 2FA.\n\n### Vulnerable versions\nThis vulnerability is present in Ghost v5.105.0 to v5.130.5 to and Ghost v6.0.0 to v6.10.3.\n\n### Patches\nv5.130.6 and v6.11.0 contain a fix for this issue.\n\n### References\nGhost thanks Sho Odagiri of GMO Cybersecurity by Ierae, Inc. for discovering and disclosing this vulnerability responsibly.\n\n### For more information\nIf there are any questions or comments about this advisory, email Ghost at [security@ghost.org](mailto:security@ghost.org).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "ghost"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.0.0"
      }, {
        "fixed" : "6.11.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 6.10.3"
    }
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "ghost"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.105.0"
      }, {
        "fixed" : "5.130.6"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 5.130.5"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/TryGhost/Ghost/security/advisories/GHSA-5fp7-g646-ccf4"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-22594"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TryGhost/Ghost/commit/b59f707f670e6f175b669977724ccf16c718430b"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TryGhost/Ghost/commit/fc7bc2fb0888513498154ec5cb4b21eccb88de07"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TryGhost/Ghost"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-01-08T21:29:47Z",
    "nvd_published_at" : "2026-01-10T03:15:50Z"
  }
}