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Description

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.

PUBLISHED Reserved 2026-07-06 | Published 2026-07-07 | Updated 2026-07-09 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

Missing Authorization

Product status

Default status
unaffected

Any version
affected

Credits

George Chen reporter

References

github.com/ghostfolio/ghostfolio/issues/7197 (GitHub Issue) issue-tracking

github.com/ghostfolio/ghostfolio (Product) product

github.com/...ommit/697ef59e3b58bebc5c21a9e482e4f5643390f316 (Patch Commit) patch

www.vulncheck.com/...folio-data-exposure-via-public-endpoint third-party-advisory

cve.org (CVE-2026-59708)

nvd.nist.gov (CVE-2026-59708)

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