CVE-2026-16076 MEDIUM

CVE-2026-16076: AstrBotDevs AstrBot API open_api.py OpenApiRoute.chat_send authentication spoofing

Vendor Astrbotdevs
Product AstrBot
Weakness CWE-290
Published July 18, 2026
Last update July 18, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability has been found in AstrBotDevs AstrBot up to 4.25.5. This issue affects the function OpenApiRoute.chat_send of the file astrbot/dashboard/routes/open_api.py of the component API. Such manipulation of the argument Username leads to authentication bypass by spoofing. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

July 18, 2026 CVE published

Related vulnerabilities

04Related CVE