CVE-2026-105858
highpriority · track · 0EPSS 0.005 · 41 %ileUSEPSS · scored 2026-10-27
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, a crafted request to the public first-register operation can execute code remotely when local authentication is enabled and no initial user has been created. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-97rh-rhh2-7vjvPayload: Remote Code Execution through first-register2026-10-07ghsa · osvUS
### Impact A crafted request to the public first-register operation can be used to perform a RCE exploit. **You are affected if:** - You use local auth strategy and your application remains without an initial user created ## Patches In the patched version data submission to create first user is properly sanitized. Users should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`.
sources
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references (3) nvd
External citations — patches, advisories, analysis.
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