Dash: Users can write to config despire permissions (OIDC tested)

published 2026-07-15 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-44759

cvss: 8.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits: 0; none known

Dashy is a self-hostable personal dashboard. Prior to 4.0.8, Dashy deployments using OIDC can allow unauthenticated users or non-admin authenticated users to write changes to the main config.yaml through the config-saving functionality despite configured permissions, allowing unauthorized modification of dashboard configuration and potential service disruption. This issue is fixed in version 4.0.8.

Patch / fix

links 1

github.com/lissy93/dashy/releases/tag/4.0.8 release

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 3 mo ago (2026-07-20)

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/lissy93/dashy/security/advisories/GHSA-vjj9-fmvr-6h3p referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.2	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Affected products

lissy93 dashy

Classification

Weakness

CWE-15 External Control of System or Configuration Setting
CWE-284 Improper Access Control
CWE-287 Improper Authentication
CWE-602 Client-Side Enforcement of Server-Side Security

References

Sources

CVE List CVE-2026-46485
NVD CVE-2026-46485

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary