Payload: Remote Code Execution through first-register
### 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`.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-105858US | — | — | ||
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-re… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/payloadcms/payloadPACKAGE
- https://github.com/payloadcms/payload/commit/e947fc4ba4a434f276d043386e501b1d14eda679WEB
- https://github.com/payloadcms/payload/releases/tag/v3.90.0WEB
- https://github.com/payloadcms/payload/security/advisories/GHSA-97rh-rhh2-7vjvWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-105858ADVISORY
scry
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