Description
gonic versions before 0.22.0 fail to validate administrator privileges in the startScan endpoint, allowing any authenticated user to trigger media library rescans. Attackers can repeatedly call the startScan endpoint to force CPU and I/O-intensive filesystem operations, causing denial of service on multi-user instances.
References7
- github.com/sentriz/gonic
- github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/ctrl.…
- github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/handl…
- github.com/sentriz/gonic/releases/tag/v0.22.0
- github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq
- www.vulncheck.com/advisories/gonic-before-0.22.0-missing-admini…
- github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L - CVSS 4.0
-
5.3
MEDIUM
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 41 · as of 7 November 2026
- CWE
- CWE-862
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.