TI-2026-85426 Aliases CVE-2026-123023 GHSA-fh34-mp6h-q3xc

Incorrect authorization in AgentScope Bash Tool permission check

LOW 37CWE-285Published 2026-11-05 · Updated 2026-11-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-285.

Summary

AgentScope by agentscope-ai from 2.0.0 before 2.0.9 is affected. The check_permissions function of the Bash Tool makes incorrect authorization decisions (CWE-863). A remote attacker without privileges or user interaction can exploit this to affect confidentiality, integrity and availability to a limited degree. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

A flaw has been found in agentscope-ai AgentScope up to 2.0.8. This affects the function check_permissions of the file src/agentscope/tool/_builtin/_bash.py of the component Bash Tool. This manipulation causes incorrect authorization. Remote exploitation of the attack is possible. The exploit has been published and may be used. Upgrading to version 2.0.9 mitigates this issue. Patch name: 6b43b13a46401e86abd3defeed9a8bfe5b37bc6d. It is recommended to upgrade the affected component.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00594 48th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed AgentScope (agentscope-ai): 2.0.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
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
agentscope-ai	AgentScope	2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5; 2.0.6; 2.0.7; 2.0.8	2.0.9	Patch available	CNA

AgentScope Vendoragentscope-ai Affected 2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5; 2.0.6; 2.0.7; 2.0.8 Fixed in 2.0.9 Patch available CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:agentscope-ai:agentscope::::::::	—	—	—

cpe:2.3:a:agentscope-ai:agentscope:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

Upgrade AgentScope to version 2.0.9, which fixes the issue. The fix is patch 6b43b13.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Fix · CNA AgentScope (agentscope-ai) Fixed in 2.0.9

Timeline

2026-11-05 Threatist record created from CVE-2026-123023
2026-11-05 Alias added: GHSA-fh34-mp6h-q3xc
2026-11-05 CISA SSVC decision points changed
2026-11-05 Priority changed: MEDIUM → LOW

References

Exploit 1

https://github.com/ybyu-ieu/agent-security-advisories/blob/main/agentscope/agentscope-bash-tool-tee-misclassification-arbitrary-file-write.md

Patch 3

Other 2

TI-2026-58796 AgentScope through 2.0.7.post1 Arbitrary Directory Copy via add_skill CVSS 4.0HIGH 8.7
TI-2026-85403 AgentScope MCP Workspace API OS command injection CVSS 4.0MEDIUM 6.9
TI-2026-85427 Missing authentication in AgentScope Agent Service user ID handling CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences