TI-2026-13538 Aliases CVE-2026-16197 GHSA-3c84-2qg9-24p8

Sipeed PicoClaw Group Message feishu_64.go handleMessageReceive authorization

MEDIUM 57CWE-862Published 2026-07-18 · Updated 2026-07-20

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

A security vulnerability has been detected in Sipeed PicoClaw up to 0.2.9. The affected element is the function handleMessageReceive of the file pkg/channels/feishu/feishu_64.go of the component Group Message Handler. Such manipulation leads to missing authorization. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The reported GitHub issue was closed automatically due to inactivity.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00366 30th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Sipeed	PicoClaw	0.2.0; 0.2.1; 0.2.2; 0.2.3; 0.2.4; 0.2.5; 0.2.6; 0.2.7; 0.2.8; 0.2.9	—	No fix listed	CNA

PicoClaw VendorSipeed Affected 0.2.0; 0.2.1; 0.2.2; 0.2.3; 0.2.4; 0.2.5; 0.2.6; 0.2.7; 0.2.8; 0.2.9 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:sipeed:picoclaw::::::::	—	—	Sipeed

cpe:2.3:a:sipeed:picoclaw:*:*:*:*:*:*:*:* Versions — — ·Sipeed

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-16197
2026-10-03 Alias added: GHSA-3c84-2qg9-24p8

References

Exploit 1

https://github.com/sipeed/picoclaw/issues/3082

Other 1

https://github.com/sipeed/picoclaw/

TI-2026-13463 Sipeed PicoClaw web.go web_fetch server-side request forgery CVSS 4.0MEDIUM 6.9
TI-2026-13462 Sipeed PicoClaw LINE Webhook line.go webhook.ParseRequest authentication replay CVSS 4.0MEDIUM 6.9
TI-2026-12893 Sipeed PicoClaw Launcher access_control.go IPAllowlist access control CVSS 4.0MEDIUM 6.9
TI-2026-13539 Sipeed PicoClaw First Run Setup access_control.go authentication bypass CVSS 4.0MEDIUM 6.3
TI-2026-13537 Sipeed PicoClaw web_fetch web.go isPrivateOrRestrictedIP server-side request forgery CVSS 4.0MEDIUM 5.3
TI-2026-13536 Sipeed PicoClaw Group Message wecom.go dispatchIncoming authorization CVSS 4.0MEDIUM 5.3

See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences