Authorization Flaw in AstrBot by AstrBotDevs
CVE-2026-17530

5.3MEDIUM

Key Information:

Vendor

Astrbotdevs

Status
Astrbot
Vendor
CVE Published:
27 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-17530?

A significant security flaw has been identified in the AstrBot application developed by AstrBotDevs. This vulnerability affects the _build_handoff_toolset function in the astr_agent_tool_exec.py file, which is part of the Subagent component. The exploit allows attackers to manipulate the authorization process, potentially leading to unauthorized access. This issue can be exploited remotely, raising concerns for any installations of AstrBot up to version 4.25.5. A patch has been issued (d23011262e8e75e1ec41b0f1f0091493a022327e) to mitigate the risks associated with this vulnerability.

Affected Version(s)

AstrBot 4.25.0

AstrBot 4.25.1

AstrBot 4.25.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-17530 - Proof of Concept

References

https://vuldb.com/vuln/383395
vdb-entrytechnical-description
https://vuldb.com/vuln/383395/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-17530
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erichen-apple (VulDB User)
.