# CVE-2026-59817: Ghost: Paid gift memberships obtainable at minimal cost via the donations feature

> An attacker can exploit the donation checkout flow to obtain paid gift memberships for minimal cost, bypassing intended payment logic.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 9 Jul 2026
- **Updated:** 14 Jul 2026
- **Also known as:** BIT-ghost-2026-59817, GHSA-xm43-3m56-w3wf

## What is CVE-2026-59817?

CVE-2026-59817 is a medium-severity vulnerability in TryGhost Ghost, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key), CWE-472 (External Control of Assumed-Immutable Web Parameter)

## Which versions are affected by CVE-2026-59817?

3 open source packages ship an affected version, including ghost.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `ghost` | Bitnami | From 6.27.0 | 6.44.0 |
| `ghost` | npm | From 6.27.0 | 6.44.0 |
| `ghost` | npm | From 6.27.0 | 6.44.0 |

## How do I fix CVE-2026-59817?

Upgrade ghost to 6.44.0 or later.

## Is CVE-2026-59817 being exploited?

There is no known exploitation of CVE-2026-59817 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-59817 and fix it if it is affected.

What it is: CVE-2026-59817 is a medium-severity vulnerability in TryGhost Ghost, published on 9 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-59817 in the wild and no public exploit code.

Affected packages and fixed versions:
- ghost (Bitnami): affected from 6.27.0; fixed in 6.44.0
- ghost (npm): affected from 6.27.0; fixed in 6.44.0
- ghost (npm): affected from 6.27.0; fixed in 6.44.0

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-2026-59817/ (Markdown: https://insights.sbomify.com/CVE-2026-59817/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-59817
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-59817
- OSV: https://osv.dev/vulnerability/CVE-2026-59817

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-59817/
Summaries are generated and may contain mistakes; the official description above is the record.