TI-2026-08962 Aliases CVE-2026-10224 GHSA-pmqc-57g8-c22c

NousResearch hermes-agent Webhook Endpoint feishu.py _handle_webhook_request resource consumption

HIGH 70CWE-400Published 2026-06-01 · Updated 2026-06-01

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.30. This vulnerability affects the function _handle_webhook_request of the file gateway/platforms/feishu.py of the component Webhook Endpoint. Such manipulation leads to resource consumption. The attack can be launched remotely. The exploit has been disclosed publicly and may 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 0.00372 31st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

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; 2026.4.17; 2026.4.18; 2026.4.19; 2026.4.20; 2026.4.21; 2026.4.22; 2026.4.23; 2026.4.24; 2026.4.25; 2026.4.26; 2026.4.27; 2026.4.28; 2026.4.29; 2026.4.30	—	No fix listed	CNA
—	hermes-agent (PyPI)	up to 0.19.0	—	No fix listed	GHSA-pmqc-57g8-c22c

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; 2026.4.17; 2026.4.18; 2026.4.19; 2026.4.20; 2026.4.21; 2026.4.22; 2026.4.23; 2026.4.24; 2026.4.25; 2026.4.26; 2026.4.27; 2026.4.28; 2026.4.29; 2026.4.30 Fixed in — No fix listed CNA
hermes-agent (PyPI) Vendor— Affected up to 0.19.0 Fixed in — No fix listed GHSA-pmqc-57g8-c22c

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

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-10224
2026-10-03 Alias added: GHSA-pmqc-57g8-c22c

References

Exploit 1

https://gist.github.com/YLChen-007/0304e313d811f187ade93d3b01de0f87

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-10224

Other 3

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-2026-08959 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-2026-08218 NousResearch hermes-agent Environment Variable code_execution_tool.py execute_code sandbox 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