CVE-2026-44985

Dozzle is a realtime log viewer for docker containers. Prior to 10.5.2, he WebSocket upgrader for the /exec and /attach endpoints uses CheckOrigin: func(r *http.Request) bool { return true }, accepting upgrade requests from any origin. Combined with the JWT cookie using SameSite: Lax, this enables Cross-Site WebSocket Hijacking (CSWSH). An attacker hosting a page on a same-site origin (e.g., a sibling subdomain, or another service on localhost) can initiate a WebSocket connection to the exec endpoint that carries the victim's valid JWT cookie, gaining interactive shell access in any container the victim is authorized to access. This vulnerability is fixed in 10.5.2.

CVSS v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/amir20/dozzle/releases/tag/v10.5.2	Product Release Notes
https://github.com/amir20/dozzle/security/advisories/GHSA-j643-x8pv-8m67	Exploit Mitigation Vendor Advisory
https://github.com/amir20/dozzle/security/advisories/GHSA-j643-x8pv-8m67	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:amirraminfar:dozzle:*:*:*:*:*:docker:*:*

History

No history.

Information

Published : 2026-05-26 22:16

Updated : 2026-07-24 12:10

NVD link : CVE-2026-44985

Mitre link : CVE-2026-44985

CVE.ORG link : CVE-2026-44985

JSON object : View

Products Affected

amirraminfar

dozzle

CWE

CWE-346

Origin Validation Error

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Prior to 10.5.2, he WebSocket upgrader for the /exec and /attach endpoints uses CheckOrigin: func(r *http.Request) bool { return true }, accepting upgrade requests from any origin. Combined with the JWT cookie using SameSite: Lax, this enables Cross-Site WebSocket Hijacking (CSWSH). An attacker hosting a page on a same-site origin (e.g., a sibling subdomain, or another service on localhost) can initiate a WebSocket connection to the exec endpoint that carries the victim's valid JWT cookie, gaining interactive shell access in any container the victim is authorized to access. This vulnerability is fixed in 10.5.2."}, {"lang": "es", "value": "Dozzle es un visor de registros en tiempo real para contenedores docker. Antes de la versi\u00f3n 10.5.2, el actualizador de WebSocket para los puntos finales /exec y /attach utiliza CheckOrigin: func(r http.Request) bool { return true }, aceptando solicitudes de actualizaci\u00f3n desde cualquier origen. Combinado con la cookie JWT que utiliza SameSite: Lax, esto permite el Secuestro de WebSocket entre sitios (CSWSH). Un atacante que aloja una p\u00e1gina en un origen del mismo sitio (por ejemplo, un subdominio hermano, u otro servicio en localhost) puede iniciar una conexi\u00f3n WebSocket al punto final exec que lleva la cookie JWT v\u00e1lida de la v\u00edctima, obteniendo acceso interactivo a la shell en cualquier contenedor al que la v\u00edctima est\u00e9 autorizada a acceder. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 10.5.2."}], "lastModified": "2026-07-24T12:10:00.210", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:amirraminfar:dozzle:*:*:*:*:*:docker:*:*", "vulnerable": true, "matchCriteriaId": "4E864904-5D1C-4286-91D8-D1F411144146", "versionEndExcluding": "10.5.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}