CVE-2026-105866

Payload: Unauthenticated account-lockout denial of service

State: Published
Severity: 6.9 Medium
Published: Oct 6, 2026
Updated: Oct 6, 2026
Reserved: Oct 5, 2026

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, an unauthenticated attacker who knows an account email address or username can abuse the account lockout mechanism of a local-authentication collection to prevent that account from signing in. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-307 Improper Restriction of Excessive Authentication Attempts
CWE-645 Overly Restrictive Account Lockout Mechanism

Affected Products

Product	Versions
payloadpayloadcms	< 3.90.0Affected >= 4.0.0-canary.0, < 4.0.0-canary.34Affected

References

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