CVE-2026-105863: critical vulnerability in payloadcms payload
Payload authentication token field handling issue
Published
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.2epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, a custom field option that maps a field to a reserved authentication claim name can place unintended values in the authentication token issued at login. This issue is fixed in version 3.90.0.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
payloadcms · payloadRelated CVEs — payloadcms payload
In the same product, most dangerous first.
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