CVE-2026-46485Public exploitNetwork attack vector

Unauthenticated configuration overwrite via unguarded save endpoint

Published Jul 15, 2026 · Updated Jul 15, 2026

Improper access control in Dashy before 4.0.8 allows remote attackers to overwrite dashboard configuration through an HTTP request. The /config-manager/save handler accepts attacker-supplied YAML and writes it as the main configuration without enforcing server-side OIDC authentication or administrator status. An OIDC-enabled deployment exposes the flaw, permitting changes to authentication settings and displayed service links and allowing service interruption.

CVSS severity8.2
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Dashy before 4.0.8 allows remote attackers to overwrite dashboard configuration through an HTTP request. The /config-manager/save handler accepts attacker-supplied YAML and writes it as the main configuration without enforcing server-side OIDC authentication or administrator status. An OIDC-enabled deployment exposes the flaw, permitting changes to authentication settings and displayed service links and allowing service interruption.

The record

CVE
CVE-2026-46485
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Alicia Sykes
Product
Dashy
Classifications
CWE-15, CWE-284, CWE-602, CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.0.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Alicia Sykes · Dashyversion=< 4.0.8

Published CVSS scores

8.2GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-15External Control of System or Configuration Setting
CWE-284Improper Access Control
CWE-602Client-Side Enforcement of Server-Side Security
CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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