CVE-2026-59708

The GET /api/v1/public/:accessId/portfolio endpoint in ghostfolio accepts private access IDs without validating granteeUserId filtering, allowing unauthenticated access to full portfolio data. Attackers with a private access ID can retrieve sensitive portfolio information including holdings, quantities, buy prices, and performance metrics without authentication.

Score

CVSS 4.0 8.7 High

Status

Deferred - disclosure@vulncheck.com

Published

2026-07-07

Last modified

2026-10-25

Weaknesses

CWE-862

Affected products

• Ghostfolio (Ghostfol)

References

• https://github.com/ghostfolio/ghostfolio/issues/7197
• https://github.com/ghostfolio/ghostfolio
• https://github.com/ghostfolio/ghostfolio/commit/697ef59e3b58bebc5c21a9e482e4f5643390f316
• https://www.vulncheck.com/advisories/ghostfolio-unauthorized-portfolio-data-exposure-via-public-endpoint