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Ghost CLI < 1.30.1 IP Spoofing via X-Forwarded-For Header

Type: advisorySource: OSV1 source record

Ghost CLI before 1.30.1 contains an IP spoofing vulnerability that allows unauthenticated remote attackers to bypass rate-limiting controls by manipulating the X-Forwarded-For header through a misconfigured Nginx configuration. Attackers can append attacker-controlled values to the header chain using the $proxy_add_x_forwarded_for directive to present an arbitrary IP address, circumventing Ghost's rate-limiting mechanisms on self-hosted instances.

Announced Source revision 1
Original source ↗

BIT-ghost-2026-25552

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:BIT-ghost-2026-25552

ghost

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
1.30.1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.30.1"
          }
        ]
      }
    ],
    "package": {
      "name": "ghost",
      "purl": "pkg:bitnami/ghost",
      "ecosystem": "Bitnami"
    },
    "severity": [
      {
        "type": "CVSS_V4",
        "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
      }
    ],
    "database_specific": {
      "source": "https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-25552.json"
    }
  }
]
Related CVEs
CVE-2026-25552

Source reference: /aliases

Publisher severity

medium

Source reference: /database_specific/severity

Event
#59615 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement