AstrBotDevs AstrBot API open_api.py OpenApiRoute.chat_send authentication spoofing
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-287.
Summary
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.
Why it matters now
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 |
|---|---|---|---|---|---|
| AstrBotDevs | AstrBot | 4.25.0; 4.25.1; 4.25.2; 4.25.3; 4.25.4; 4.25.5 | — | No fix listed | CNA |
- AstrBot VendorAstrBotDevs Affected 4.25.0; 4.25.1; 4.25.2; 4.25.3; 4.25.4; 4.25.5 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16076
- 2026-10-03 Alias added: GHSA-jgf3-cr8w-g5h9
References
More AstrBotDevs vulnerabilities
- TI-2026-06662 AstrBotDevs AstrBot Dashboard auth.py hard-coded credentials CVSS 4.0MEDIUM 6.9
- TI-2026-14380 AstrBotDevs AstrBot Subagent astr_agent_tool_exec.py _build_handoff_toolset authorization CVSS 4.0MEDIUM 5.3
- TI-2026-14379 AstrBotDevs AstrBot astr_main_agent.py authorization CVSS 4.0MEDIUM 5.3
- TI-2026-13454 AstrBotDevs AstrBot session-listing Endpoint open_api.py OpenApiRoute.get_chat_sessions authorization CVSS 4.0MEDIUM 5.3
- TI-2026-13453 AstrBotDevs AstrBot Plugin Update plugin.py update_all_plugins server-side request forgery CVSS 4.0MEDIUM 5.3
- TI-2026-13042 AstrBotDevs AstrBot MCP Test Endpoint tools.py ToolsRoute.test_mcp_connection server-side request forgery CVSS 4.0MEDIUM 5.3
Sources
- CVE-2026-16076 · CVE Program
- CVE-2026-16076 · NVD
- FIRST EPSS
- GHSA-jgf3-cr8w-g5h9 · GitHub Advisory Database · CC BY 4.0
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