CVE-2026-46485: Access Control Flaw (CVSS 8.2)

Description

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.

Is your site exposed to CVE-2026-46485?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.2

HIGH

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

EPSS — Exploit Prediction

0.0030

Probability of exploitation

0.22%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-15 CWE-15

CWE-284 CWE-284

CWE-287 Improper Authentication

CWE-602 CWE-602

References

Other References

https://github.com/lissy93/dashy/releases/tag/4.0.8 https://github.com/lissy93/dashy/security/advisories/GHSA-vjj9-fmvr-6h3p https://github.com/lissy93/dashy/security/advisories/GHSA-vjj9-fmvr-6h3p

Frequently Asked Questions

What is CVE-2026-46485? +

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. It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-46485? +

CVE-2026-46485 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0030, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-46485? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-46399

HAX CMS helps manage microsite universe with PHP or NodeJs backends. The PHP version of HAX CMS prior to version …

CVE-2024-11166

For TCAS II systems using transponders compliant with MOPS earlier than RTCA DO-181F, an attacker can impersonate a ground station …

CVE-2025-64726

Socket Firewall is an HTTP/HTTPS proxy server that intercepts package manager requests and enforces security policies by blocking dangerous packages. …

CVE-2025-41452

Post-authenticated external control of system web interface configuration setting vulnerability in Danfoss AK-SM8xxA Series prior to 4.3.1, which could allow …

CVE-2026-0418

Insufficient configuration management in the listed devices allows authenticated administrators connected to the local network to tamper with the system.

CVE-2025-0425

Via the GUI of the "bestinformed Infoclient", a low-privileged user is by default able to change the server address of …

CVE-2026-46485