CVE Catalog

CVE-2026-16076

MediumCVSS 6.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.29%

21th percentile - higher than 21% of all known CVEs

Summary

A vulnerability in AstrBot up to version 4.25.5 affects the OpenApiRoute.chat_send function in open_api.py. Manipulating the Username argument in the API allows authentication bypass via spoofing. The attack can be launched remotely and exploit details are publicly available.

Risk Assessment

The risk involves remote authentication bypass and impersonation of any user, potentially leading to unauthorized access to API functions and possible takeover of the bot.

Recommendation

Immediately update AstrBot to the latest available version that fixes this vulnerability. Until then, restrict API access to trusted IP addresses and implement additional authentication mechanisms.

Other vulnerabilities in AstrBot

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Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS