CVE-2026-10802 keystonejs keystone GraphQL API Endpoint output-field.ts resource consumption
Remote attackers can cause resource exhaustion in KeystoneJS GraphQL API endpoints, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10802?
CVE-2026-10802 is a medium-severity denial of service vulnerability in keystonejs keystone, published on 4 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in keystonejs keystone up to 20260319. This vulnerability affects unknown code in the library packages/core/src/lib/core/queries/output-field.ts of the component GraphQL API Endpoint. The manipulation results in resource consumption. It is possible to launch the attack remotely. The exploit is now public and may be used. The pull request to fix this issue awaits acceptance.
Which versions are affected by CVE-2026-10802?
2 open source packages ship an affected version, including @keystone-6/core.
| Package | Affected | Fixed in |
|---|---|---|
@keystone-6/core npm | All versions to 6.5.3 | None |
@keystone-6/core npm | All versions to 6.5.3 | None |
How do I fix CVE-2026-10802?
No fix has been published for CVE-2026-10802 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-10802 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10802 exists.
Sources
Also known as GHSA-45jq-c8xm-jfw9.