What’s Vulnerable › Vulnerabilities

CVE-2026-105852: Payload relationship-query authorization bypass

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-06 · updated 2026-10-15
• Weakness: CWE-862

Description

Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, querying a readable collection with a relationship to another collection can expose information about related documents protected by access.read where constraints. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

Affected products

• payloadcms payload: before 3.90.0; 4.0.0-canary0, 4.0.0-canary1, 4.0.0-canary10, 4.0.0-canary11, 4.0.0-canary12, 4.0.0-canary13 (+28) — fixed in 3.90.0

How to fix

Upgrade to a fixed version: payloadcms payload 3.90.0. Check the vendor advisory for mitigations.

References

• https://github.com/payloadcms/payload/commit/94059cf4bc6170ce88453015c0c6551329ae3982
• https://github.com/payloadcms/payload/releases/tag/v3.90.0
• https://github.com/payloadcms/payload/security/advisories/GHSA-7c34-32v3-j575

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