Path Traversal in ghost (CVE-2026-105677)
Summary
Path traversal in ghost (CVE-2026-105677). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 6.64.0 or later.
Original description
The description as published by the source.
Impact
A vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to execute arbitrary code on the server via a crafted theme.
Vulnerable versions
This vulnerability is present in Ghost from v6.10.3 up to v6.64.0.
Patches
v6.64.0 contains a fix for this issue.
How to update
For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.
If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.
References
Ghost thanks Miguel Segovia Gil of KPMG, Alemmi, and Tomer-PL for disclosing this vulnerability responsibly.
For more information
If you have any questions or comments about this advisory, email us at security@ghost.org.
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-2026-105677 has been found in ghost.
Successful exploitation can lead to full system takeover. CVSS score: 7.2/10.
What to do: upgrade ghost to 6.64.0 or later.
If unsure, ask your IT team or search "ghost CVE-2026-105677" on the vendor's site.
CVE-2026-105677 (ghost) — CWE-22 / CVSS v3 7.2
Attack vector: remote (network-reachable) / no user interaction
Patched: 6.64.0 — apply immediately
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.
Path traversal (CWE-22) exists in ghost.
Check the vendor advisory for the affected versions of ghost.
Severity: High (CVSS 7.2/10). Successful exploitation can lead to full system takeover.
Update to 6.64.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
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
-
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 patch patch
Upgrade ghost to 6.64.0ステージング環境で 6.64.0 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。
-
3Post-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
- web github.com
- web github.com
- web github.com
- web github.com
- web nvd.nist.gov
- web github.com