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CVE-2026-16083— Sipeed PicoClaw LINE Webhook line.go webhook.ParseRequest authentication replay

Quick assessment

Affected
Sipeed PicoClaw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sipeed picoclaw是Sipeed公司的嵌入式服务器。 Sipeed PicoClaw 0.2.9及之前版本存在授权问题漏洞，该漏洞源于LINE Webhook组件文件pkg/channels/line/line.go中的webhook.ParseRequest函数存在捕获重放攻击，可能导致未经身份验证的攻击者远程绕过身份验证。

CVSS 5.3 · Medium EPSS 0.72% · P52

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProduct Version RangeStatus
Sipeed PicoClaw 0.2.0 affected
0.2.1 affected
0.2.2 affected
0.2.3 affected
0.2.4 affected
0.2.5 affected
0.2.6 affected
0.2.7 affected
… +2 more rows
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I. Basic Information for CVE-2026-16083

Vulnerability Information
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Vulnerability Title
Sipeed PicoClaw LINE Webhook line.go webhook.ParseRequest authentication replay
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Sipeed PicoClaw up to 0.2.9. This affects the function webhook.ParseRequest of the file pkg/channels/line/line.go of the component LINE Webhook. The manipulation results in authentication bypass by capture-replay. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The reported GitHub issue was closed automatically with the label "not planned" by a bot.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Sipeed PicoClaw 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sipeed picoclaw是Sipeed公司的嵌入式服务器。 Sipeed PicoClaw 0.2.9及之前版本存在授权问题漏洞，该漏洞源于LINE Webhook组件文件pkg/channels/line/line.go中的webhook.ParseRequest函数存在捕获重放攻击，可能导致未经身份验证的攻击者远程绕过身份验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Sipeed PicoClaw 0.2.0 cpe:2.3:a:sipeed:picoclaw:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-16083

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-16083

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Other References for CVE-2026-16083 (1)

Same Patch Batch · Sipeed · 2026-07-18 · 9 CVEs total

CVE-2026-16084 7.3 HIGH Sipeed PicoClaw web.go web_fetch server-side request forgery
CVE-2026-16195 6.3 MEDIUM Sipeed PicoClaw Group Message wecom.go dispatchIncoming authorization
CVE-2026-16196 6.3 MEDIUM Sipeed PicoClaw web_fetch web.go isPrivateOrRestrictedIP server-side request forgery
CVE-2026-16197 6.3 MEDIUM Sipeed PicoClaw Group Message feishu_64.go handleMessageReceive authorization
CVE-2026-16198 5.6 MEDIUM Sipeed PicoClaw First Run Setup access_control.go authentication bypass
CVE-2026-16082 5.3 MEDIUM Sipeed PicoClaw pipeline_execute.go ExecTool.executeRun toctou
CVE-2026-16085 5.3 MEDIUM Sipeed PicoClaw context.go NewContextBuilder inclusion of functionality from untrusted con
CVE-2026-16081 4.3 MEDIUM Sipeed PicoClaw auth.go cross-site request forgery

IV. Related Vulnerabilities

Same product: PicoClaw
Same vendor: Sipeed
Same weakness: CWE-294

V. Comments for CVE-2026-16083

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