Vulnerability in ghost (CVE-2026-59817)
Summary
Vulnerability in ghost (CVE-2026-59817). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 6.44.0 or later.
Original description
The description as published by the source.
Ghost is a Node.js content management system. From 6.27.0 before 6.44.0, Ghost's public donation checkout flow allowed an unauthenticated attacker to control donation checkout metadata and obtain full paid gift memberships for a minimal payment without exposing customer or member data or stealing money from a site or its members. This issue is fixed in version 6.44.0.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-59817 has been found in ghost.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: upgrade ghost to 6.44.0 or later.
If unsure, ask your IT team or search "ghost CVE-2026-59817" on the vendor's site.
CVE-2026-59817 (ghost) — CWE-472 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 6.44.0 — apply immediately
Workaround: If upgrading immediately is not possible, you can remove the vulnerable checkout path by disabling the donations feature in Ghost Admin under Settings → Membership → Tips & donations until the upgrade is applied.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-472) exists in ghost.
Check the vendor advisory for the affected versions of ghost.
Severity: Medium (CVSS 5.3/10). Risk of unauthorized operations or information disclosure.
Update to 6.44.0.
Workaround: If upgrading immediately is not possible, you can remove the vulnerable checkout path by disabling the donations feature in Ghost Admin under Settings → Membership → Tips & donations until the upgrade is applied.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'ghost' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'ghost' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
ghostを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply temporary workaround mitigate
If upgrading immediately is not possible, you can remove the vulnerable checkout path by disabling the donations feature in Ghost Admin under Settings → Membership → Tips & donations until the upgrade is applied.パッチが適用されるまでの応急処置として、If upgrading immediately is not possible, you can remove the vulnerable checkout path by disabling the donations feature in Ghost Admin under Settings → Membership → Tips & donations until the upgrade is applied. を実施。回避策の副作用 (機能低下) を確認した上で。
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3Apply patch patch
Upgrade ghost to 6.44.0ステージング環境で 6.44.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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4Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- patch github.com
- patch github.com
- patch github.com
- patch github.com
- web github.com