CVE-2026-62283

Critical

Description

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Nezha versions 1.14.13 through 1.14.14 and 2.0.0 through 2.0.9 do not bind stream identifiers created by CreateStream in service/rpc/io_stream.go to their creating user, and `GET /ws/terminal/:id` and `GET /ws/file/:id` only check whether the supplied UUID exists. An authenticated RoleMember who obtains a live stream UUID from logs, browser history, referer data, or telemetry can attach to another user's terminal or file-manager session, read and write target-server files, and execute shell commands. This issue is fixed in version 2.0.10.

SeverityCritical

CVSS9.9

Exploit probability—

ProductGithub.com/nezhahq/nezha

PublishedAug 21, 2026

First seenAug 21, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key CWE-862Missing authorization

How to fix

Update

github.com/nezhahq/nezha2.0.10 or later

Affected products

Product	Affected versions	Fixed in
github.com/nezhahq/nezhaGo	1.14.13 ≤ v ≤ 1.14.14, 2.0.0 ≤ v < 2.0.10, No range specified, 1.14.13 ≤ v	2.0.10

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