Unauthenticated Account Registration via /user/invited Bypasses All Signup Restrictions in Chartbrew

Description

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In version 4.9.0, the endpoint POST /user/invited does not validate any invite token, authentication header, or session. Any unauthenticated attacker can call this endpoint directly to create a fully active account and receive a valid JWT — even when the instance has existing users and signupRestricted is enabled. This bypass is distinct from the normal registration endpoint (POST /user) which enforces signupRestricted and sets active: false pending verification. This issue has been patched in version 5.0.0.

Scores

EPSS (exploitation in 30 days)

0.24% · top 84% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

• CWE-306: Missing Authentication for Critical Function (opens in a new tab)All about CWE-306 and its CVEs

Affected products

• chartbrew · chartbrew

  • affected = 4.9.0

References (2)

• https://github.com/chartbrew/chartbrew/security/advisories/GHSA-g47g-v5cp-j8hp (opens in a new tab)x_refsource_CONFIRM
• https://github.com/chartbrew/chartbrew/releases/tag/v5.0.0 (opens in a new tab)x_refsource_MISC

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-35514](https://trackcve.app/badge/CVE-2026-35514.svg)](https://trackcve.app/cve/CVE-2026-35514)

Record last updated 1 May 2026, 16:38 UTC.