TI-2026-08218 Aliases CVE-2026-9368 GHSA-wm96-9gfh-vvgq

NousResearch hermes-agent Environment Variable code_execution_tool.py execute_code sandbox

HIGH 70CWE-264Published 2026-05-24 · Updated 2026-05-26

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-264 and CWE-269.

Summary

A vulnerability was identified in NousResearch hermes-agent up to 2026.4.16. This impacts the function execute_code of the file tools/code_execution_tool.py of the component Environment Variable Handler. Such manipulation leads to sandbox issue. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0038 32nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed hermes-agent (PyPI): 0.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
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
NousResearch	hermes-agent	2026.4.0; 2026.4.1; 2026.4.2; 2026.4.3; 2026.4.4; 2026.4.5; 2026.4.6; 2026.4.7; 2026.4.8; 2026.4.9; 2026.4.10; 2026.4.11; 2026.4.12; 2026.4.13; 2026.4.14; 2026.4.15; 2026.4.16	—	No fix listed	CNA
—	hermes-agent (PyPI)	before 0.11.0	0.11.0	Patch available	GHSA-wm96-9gfh-vvgq

hermes-agent VendorNousResearch Affected 2026.4.0; 2026.4.1; 2026.4.2; 2026.4.3; 2026.4.4; 2026.4.5; 2026.4.6; 2026.4.7; 2026.4.8; 2026.4.9; 2026.4.10; 2026.4.11; 2026.4.12; 2026.4.13; 2026.4.14; 2026.4.15; 2026.4.16 Fixed in — No fix listed CNA
hermes-agent (PyPI) Vendor— Affected before 0.11.0 Fixed in 0.11.0 Patch available GHSA-wm96-9gfh-vvgq

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:nousresearch:hermes-agent::::::::	—	—	NousResearch

cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:* Versions — — ·NousResearch

Remediation

Fix · GHSA-wm96-9gfh-vvgq hermes-agent (PyPI) Fixed in 0.11.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-9368
2026-10-03 Alias added: GHSA-wm96-9gfh-vvgq
2026-10-21 EPSS moved to the 50th–90th percentile
2026-10-25 EPSS moved to the below the 50th percentile

References

Exploit 1

https://gist.github.com/YLChen-007/43c72d19668421abe8ce10f299323a0a

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-9368

Other 2

TI-2026-50258 Hermes Agent 0.18.2 - 0.21.0 RCE via git core.fsmonitor Config Injection CVSS 4.0HIGH 8.6
TI-2026-12325 NousResearch hermes-agent Live Webhook Endpoint base.py extract_media path traversal CVSS 4.0MEDIUM 6.9
TI-2026-08962 NousResearch hermes-agent Webhook Endpoint feishu.py _handle_webhook_request resource consumption CVSS 4.0MEDIUM 6.9
TI-2026-08959 NousResearch hermes-agent run_agent.py _compress_context injection CVSS 4.0MEDIUM 6.9
TI-2026-08958 NousResearch hermes-agent skills_tool.py skill_view injection CVSS 4.0MEDIUM 6.9
TI-2026-08217 NousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command injection CVSS 4.0MEDIUM 6.9

See all 44 →

Sources

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