CVE-2026-105866CWE-307CWE-645

CVE-2026-105866

High · published October 6, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
30.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
6.9 · 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
EPSS
0.00374 · 30.1th percentile
Weaknesses
CWE-307 · Improper Restriction of Excessive Authentication Attempts; CWE-645 · Overly Restrictive Account Lockout Mechanism
Published
2026-10-06T21:17Z
Affected products (35)
ProductVersionsFixed in
payloadcms/payload< 3.90.03.90.0
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References (3)
https://github.com/payloadcms/payload/commit/1c46204a73a0a9f988a80c52690eee5a4ada3cf1 · [email protected]https://github.com/payloadcms/payload/releases/tag/v3.90.0 · [email protected]https://github.com/payloadcms/payload/security/advisories/GHSA-v5gf-vpjc-pc7w · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 16:46Z
    Payload: Unauthenticated account-lockout denial of service
    cvelistv5