CVE-2026-101004 notionnext-org NotionNext Authentication Guard cache.js cleanCache missing authentication
Attackers can remotely invoke the cleanCache function without authentication in default deployments, bypassing security controls in NotionNext.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-101004?
CVE-2026-101004 is a medium-severity missing authorization vulnerability in notionnext-org NotionNext, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security vulnerability has been detected in notionnext-org NotionNext up to 4.10.10. Affected by this issue is the function cleanCache of the file pages/api/cache.js of the component Authentication Guard. The manipulation of the argument token leads to missing authentication. The attack may be initiated remotely. Versions 4.1.0 - 4.9.5.2 allow unauthenticated exploitation due to missing method check. In versions 4.9.5.7 - 4.10.10 a guard present but only enforced when CACHE_REVALIDATION_TOKEN is set. Default deployments remain unprotected. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-101004?
How do I fix CVE-2026-101004?
No fix has been published for CVE-2026-101004 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-101004 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101004 exists.
Sources
Also known as GHSA-r4gw-rxqg-rfvq.