CVE-2026-101004: Missing Authentication in notionnext-org NotionNext
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.
AI Analysis
Technical Summary
The vulnerability CVE-2026-101004 in NotionNext affects the cleanCache function in pages/api/cache.js within the Authentication Guard component. It allows an attacker to bypass authentication by manipulating the token argument. In versions 4.1.0 to 4.9.5.2, there is no method check, enabling unauthenticated exploitation. Later versions 4.9.5.7 to 4.10.10 introduce a guard, but it is conditional on the CACHE_REVALIDATION_TOKEN environment variable being set, which is not enabled by default, leaving many deployments vulnerable. The vendor has not provided any response or patch to address this issue.
Potential Impact
An attacker can remotely exploit this vulnerability to bypass authentication controls in the cleanCache function, potentially allowing unauthorized access to cache-related operations. This could lead to unauthorized data manipulation or information disclosure depending on the cache's role in the application. The vulnerability affects all deployments that do not have the CACHE_REVALIDATION_TOKEN environment variable set, which is the default state, increasing the risk of exploitation.
Mitigation Recommendations
No official fix or patch is currently available from the vendor. Deployments should consider setting the CACHE_REVALIDATION_TOKEN environment variable as a temporary mitigation to enable the existing guard. Until a vendor patch or official remediation is released, restrict access to the affected API endpoint and monitor for suspicious activity. Check the vendor advisory regularly for updates.
CVE-2026-101004: Missing Authentication in notionnext-org NotionNext
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.
CVSS v4.0
Score 6.9medium
Affected software
notionnext-org
NotionNext
pkg:github/notionnext-org/NotionNextcpe:2.3:a:notionnext-org:notionnext:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-101004 in NotionNext affects the cleanCache function in pages/api/cache.js within the Authentication Guard component. It allows an attacker to bypass authentication by manipulating the token argument. In versions 4.1.0 to 4.9.5.2, there is no method check, enabling unauthenticated exploitation. Later versions 4.9.5.7 to 4.10.10 introduce a guard, but it is conditional on the CACHE_REVALIDATION_TOKEN environment variable being set, which is not enabled by default, leaving many deployments vulnerable. The vendor has not provided any response or patch to address this issue.
Potential Impact
An attacker can remotely exploit this vulnerability to bypass authentication controls in the cleanCache function, potentially allowing unauthorized access to cache-related operations. This could lead to unauthorized data manipulation or information disclosure depending on the cache's role in the application. The vulnerability affects all deployments that do not have the CACHE_REVALIDATION_TOKEN environment variable set, which is the default state, increasing the risk of exploitation.
Mitigation Recommendations
No official fix or patch is currently available from the vendor. Deployments should consider setting the CACHE_REVALIDATION_TOKEN environment variable as a temporary mitigation to enable the existing guard. Until a vendor patch or official remediation is released, restrict access to the affected API endpoint and monitor for suspicious activity. Check the vendor advisory regularly for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-27T10:37:57.027Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aba038df7a7c541063eb372
Added to database: 09/28/2026, 06:05:01 UTC
Last enriched: 09/28/2026, 06:17:43 UTC
Last updated: 09/29/2026, 02:42:04 UTC
Views: 21
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