What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-18 · updated 2026-10-24
• Weakness: CWE-287

Description

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.

Affected products

• AstrBotDevs AstrBot: 4.25.0, 4.25.1, 4.25.2, 4.25.3, 4.25.4, 4.25.5

References

• https://gist.github.com/YLChen-007/080ba55a71588dbbba3f27afed4c072c
• https://vuldb.com/cve/CVE-2026-16076
• https://vuldb.com/submit/852864
• https://vuldb.com/vuln/379791
• https://vuldb.com/vuln/379791/cti

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