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TI-2026-42581 Aliases CVE-2026-59708GHSA-fqj2-r74g-4gfp

Ghostfolio - Unauthorized Portfolio Data Exposure via Public Endpoint

Priority MEDIUM 44CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00593 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ghostfolioghostfolioup to 3.6.0—No fix listedCNA
  • ghostfolio Vendorghostfolio Affected up to 3.6.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59708
  2. 2026-10-03 Alias added: GHSA-fqj2-r74g-4gfp

References

  • TI-2026-34718 Ghostfolio has a Stripe subscription bypass CVSS 3.1MEDIUM 6.5
  • TI-2026-42582 Ghostfolio - Unauthorized Portfolio Holding Tag Modification via Missing Permission Check CVSS 4.0MEDIUM 5.3

Sources