Medium 4.3Published Jul 7, 2026

CVE-2026-59709Ghostfolio - Unauthorized Portfolio Holding Tag Modification via Missing Permission Check

Updated under an hour ago (Oct 26, 2026, 7:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

Ghostfolio's PUT /api/v1/portfolio/holding/:dataSource/:symbol/tags endpoint fails to verify Access.permissions field when processing the Impersonation-Id header, allowing read-only access grantees to modify portfolio holding tags. Attackers with valid read-only share tokens can assign or remove tags on victim holdings, corrupting portfolio categorization and reports.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Sep 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Ghostfolio Ghostfolio ghostfolio:ghostfolio (from the name)	through 3.6.0	CNA record

References

References

https://github.com/ghostfolio/ghostfolio/issues/7196	issue-tracking
https://github.com/ghostfolio/ghostfolio	product
https://github.com/ghostfolio/ghostfolio/commit/697ef59e3b58bebc5c21a9e482e4f5643390f316	patch
https://www.vulncheck.com/advisories/ghostfolio-unauthorized-portfolio-holding-tag-modification-via-missing-permission-check	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.