EUVD-2026-49333
GHSA-3397-vr69-3m3w
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (vuldb) · only source for this CVE.
CVSS VectorVendor: vuldb
Lifecycle Timeline
2DescriptionCVE.org
A security flaw has been discovered in AstrBotDevs AstrBot up to 4.25.5. Affected by this vulnerability is the function _build_handoff_toolset of the file AstrBot/astrbot/core/astr_agent_tool_exec.py of the component Subagent. The manipulation results in incorrect authorization. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The patch is identified as d23011262e8e75e1ec41b0f1f0091493a022327e. A patch should be applied to remediate this issue.
AnalysisAI
Improper authorization in AstrBot up to version 4.25.5 allows authenticated remote attackers to bypass tool access restrictions in the Subagent component. The flaw arises from insufficient filtering of handoff tools, exposing restricted functionality to low-privileged users. A public proof-of-concept exploit exists, though the overall severity is low (CVSS 4.0 score 2.1) and no active exploitation is reported in CISA KEV.
Same weakness CWE-285 – Improper Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today