CVE-2026-105852: CWE-862: Missing Authorization in payloadcms payload
Description
## Impact A readable collection could expose information about protected documents in a related collection. **You are affected if:** - You expose a readable collection with a relationship to a collection protected by access.read where constraints. ## Patches Users should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`. ## Workarounds There is no complete workaround. Upgrade Payload packages `>= 3.90.0` or `>= 4.0.0-canary.34`.
CVSS v4.0
Score 6.9medium
Affected software
payloadcms
payload
pkg:github/payloadcms/payloadRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
PayloadCMS, a headless content management system, suffers from a missing authorization vulnerability (CWE-862) in versions before 3.90.0 and canary versions before 4.0.0-canary.34. Specifically, when querying a readable collection that has a relationship to another collection, information about related documents protected by access.read constraints can be exposed improperly. This vulnerability allows unauthorized information disclosure due to insufficient enforcement of access control on related documents. The vulnerability has been fixed in versions 3.90.0 and 4.0.0-canary.34.
Potential Impact
Unauthorized users can gain access to information about related documents that should be protected by access.read constraints, potentially leading to information disclosure. The vulnerability does not require privileges or user interaction and can be exploited remotely over the network. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the network attack vector, low complexity, and lack of required privileges or user interaction.
Mitigation Recommendations
Upgrade to PayloadCMS version 3.90.0 or later, or to canary version 4.0.0-canary.34 or later, where this missing authorization vulnerability has been fixed. No other mitigation is indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-05T23:06:29.748Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac51f772cdf04f656c32847
Added to database: 10/06/2026, 16:19:03 UTC
Last enriched: 10/06/2026, 16:33:48 UTC
Last updated: 10/06/2026, 21:42:11 UTC
Views: 13
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