MajorCritical vulnerability
CVE-2026-105858: Payload: Remote Code Execution through first-register
GitHub Advisories · officialPublished Oct 7, 2026Risk 37/100
### 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`.
Recommended action
Recommended action
Upgrade affected packages to a patched version: payload 3.90.0, payload 4.0.0-canary.34.
Technical details
- Vendor
- Not specified
- Product
- payload
- Exploitation
- none known
- Evidence
- official
CVSS
8.1
Evidence and sources
This record is attributed to GitHub Advisories. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
Open primary source