# CVE-2026-105677: Ghost: Remote Code Execution via Theme Translation Files

> An authenticated Administrator can execute arbitrary code on the server by uploading a crafted theme with malicious translation files.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 Oct 2026
- **Updated:** 6 Oct 2026
- **Also known as:** MINI-4mgc-vr6q-jh3q

## What is CVE-2026-105677?

CVE-2026-105677 is a high-severity code injection vulnerability in TryGhost Ghost, published on 5 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Ghost is a Node.js content management system. From 6.10.3 until 6.64.0, a vulnerability in how Ghost loads theme translation files allowed an authenticated Administrator to execute arbitrary code on the server via a crafted theme. This issue is fixed in version 6.64.0.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-829 (Inclusion of Functionality from Untrusted Control Sphere), CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-105677?


## How do I fix CVE-2026-105677?

Upgrade to a fixed version.

## Is CVE-2026-105677 being exploited?

There is no known exploitation of CVE-2026-105677 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-105677 and fix it if it is affected.

What it is: CVE-2026-105677 is a high-severity code injection vulnerability in TryGhost Ghost, published on 5 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-105677 in the wild and no public exploit code.

Affected product: TryGhost Ghost. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-105677/ (Markdown: https://insights.sbomify.com/CVE-2026-105677/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-105677
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-105677
- OSV: https://osv.dev/vulnerability/CVE-2026-105677

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-105677/
Summaries are generated and may contain mistakes; the official description above is the record.