Authorization Bypass in AstrBot by AstrBotDevs
CVE-2026-17529

5.3MEDIUM

Key Information:

Vendor

Astrbotdevs

Status
Astrbot
Vendor
CVE Published:
27 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-17529?

A vulnerability has been discovered in AstrBot by AstrBotDevs, specifically impacting versions up to 4.25.5. The flaw resides in an unidentified function within the file astrbot/core/astr_main_agent.py, leading to improper authorization due to the manipulation of the argument req.func_tool. This enables unauthorized users to potentially exploit the system remotely. An available exploit has been publicly disclosed, making it imperative for users to apply the recommended patch identified by d23011262e8e75e1ec41b0f1f0091493a022327e to mitigate this risk.

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-2026-17529 - Proof of Concept

References

https://vuldb.com/vuln/383394
vdb-entrytechnical-description
https://vuldb.com/vuln/383394/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-17529
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-x (VulDB User)
.