CVE-2026-9367
📛 CVE Title
NousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command injection
Description
A vulnerability was determined in NousResearch hermes-agent up to 5157f5427f19488b31c6fdebbacd15d798ce7f63. This affects the function detect_dangerous_command of the file tools/approval.py of the component terminal_tool. This manipulation causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- VulDB
- CVSS severity
- MEDIUM
- CVSS score
- 6.9 / 10
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P- Effective score
- 6.9 / 10 MEDIUM source: CNA overview
- CWE(s)
-
CWE-78,CWE-77 - Reserved
- 2026-05-23
- Published
- 2026-05-24 08:30 UTC
- Last updated
- 2026-05-24 08:30 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/9xxx/CVE-2026-9367.json
- Linked Threat
- CVE-2026-9367 — CVE-2026-9367
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- EPSS score
- 0.0102 (probability of exploitation in next 30 days)
- EPSS percentile
- 77.49% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 00:17 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-31579 - Assigner
- VulDB
- Published
- May 24, 2026, 8:30:10 AM
- Updated
- May 26, 2026, 1:30:21 PM
- EUVD base score (CVSS 4.0)
-
6.9 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P - EUVD-reported EPSS
- 2.1400
- Vendors
- NousResearch
- Products
-
hermes-agent (5157f5427f19488b31c6fdebbacd15d798ce7f63)
- Aliases
-
GHSA-h9mm-g7gx-9mx6
ENISA description: A vulnerability was determined in NousResearch hermes-agent up to 5157f5427f19488b31c6fdebbacd15d798ce7f63. This affects the function detect_dangerous_command of the file tools/approval.py of the component terminal_tool. This manipulation causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| NousResearch | hermes-agent |
5157f5427f19488b31c6fdebbacd15d798ce7f63 (affected)
|
— |
Vendor references (4)
References embedded in the original CVE record by the assigning CNA.
- VDB-365330 | NousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command injection vdb-entrytechnical-description
- VDB-365330 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
- Submit #812228 | NousResearch hermes-agent 5157f5427f19488b31c6fdebbacd15d798ce7f63 OS Command Injection (CWE-78) third-party-advisory
- https://gist.github.com/YLChen-007/75fb10319693e86106ced2ef3a472c80 exploit
Web references (17)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search. Last searched: 2026-05-24 12:56 UTC.
- https://gist.github.com/YLChen-007/75fb10319693e86106ced2ef3a472c80 tenable:gist.github.com
- https://nvd.nist.gov/vuln/detail/CVE-2026-9367 tenable:nvd.nist.gov
- https://vuldb.com/submit/812228 tenable:vuldb.com
- https://vuldb.com/vuln/365330 tenable:vuldb.com
- https://www.cve.org/CVERecord?id=CVE-2026-9367 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
- https://vuldb.com/vuln/365330/cti tenable:vuldb.com
-
Bulletins - CISA
web:www.cisa.gov
Bulletins provide weekly summaries of new vulnerabilities. Patch information is provided when available.
-
CVE: Common Vulnerabilities and Exposures
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
-
Microsoft addresses 137 vulnerabilities in May's Patch Tuesday ...
web:cyberscoop.com
Microsoft addressed another triple-digit batch of vulnerabilities cutting across its various enterprise products, components and underlying systems. Yet despite the high number of defects, the vendor reported no actively exploited zero-days in this month's Patch Tuesday update. Thirteen of the 137 vulnerabilities Microsoft disclosed were assigned critical CVSS ratings, including a pair of ...
-
Map of CVE to Advisory/Alert - Oracle
web:www.oracle.com
Map of CVE to Advisory /Alert The following table, updated to include the April 21, 2026 Critical Patch Update, maps CVEs to specific Critical Patch Update Advisories or Security alerts for CVEs greater than CVE -2021-0000.
-
CVE-2026-9367 - Exploits & Severity - Feedly
web:feedly.com
This manipulation causes os command injection. The identification of this vulnerability is CVE-2026-9367 . It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.
-
Vulnerability assessment support in Microsoft Defender Vulnerability ...
web:learn.microsoft.com
The Vulnerabilities page in Defender Vulnerability Management lists the software vulnerabilities your devices are exposed to. The Recommendations page provides prioritized recommendations to help shorten the time to mitigate or remediate vulnerabilities.
-
Security Update Guide - Microsoft
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
-
NVD - Vulnerabilities
web:nvd.nist.gov
CVE defines a vulnerability as: "A weakness in the computational logic (e.g., code) found in software and hardware components that, when exploited, results in a negative impact to confidentiality, integrity, or availability.
-
Known Exploited Vulnerabilities Catalog - CISA
web:www.cisa.gov
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework.
-
CISA Adds One Known Exploited Vulnerability to Catalog
web:www.cisa.gov
This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures ( CVEs ...
Remediations (18)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:community.ui.com
Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...
2026-05-24 14:50 UTC -
web:cybersecuritynews.com
Microsoft released an out-of-band hotpatch update on March 13, 2026 , addressing serious security vulnerabilities in Windows 11 versions 24H2 and 25H2.
2026-05-24 14:50 UTC -
web:nvd.nist.gov
An official website of the United States government NVD MENU
2026-05-24 14:50 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-24 14:50 UTC -
web:www.cisecurity.org
<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...
2026-05-24 14:50 UTC -
web:www.computerworld.com
Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...
2026-05-24 14:50 UTC -
web:www.ntcompatible.com
Microsoft's March 2026 security updates include 83 new CVE fixes affecting various products, including Windows Server core services and Azure IoT Explorer. The most critical patch is a CVE -rated 9.
2026-05-24 14:50 UTC -
web:www.pcworld.com
This month's Patch Tuesday includes an actively exploited Office zero-day vulnerability and several critical RCE bugs in Windows and Remote Desktop.
2026-05-24 14:50 UTC -
web:www.techrepublic.com
Microsoft's April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company's largest monthly security updates.
2026-05-24 14:50 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-24 14:50 UTC -
web:blog.qualys.com
Microsoft has rolled out its March 2026 Patch Tuesday updates, delivering a fresh batch of security fixes designed to keep Windows environments protected from emerging threats.
2026-06-03 22:33 UTC -
web:blog.qualys.com
May 2026's Patch Tuesday arrives with Microsoft addressing a fresh set of vulnerabilities across its ecosystem, reinforcing the ongoing need for timely patching in an increasingly threat-heavy…
2026-06-03 22:33 UTC -
web:cybersecuritynews.com
Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026 , addressing 78 vulnerabilities across Windows, Microsoft Office, Azure, SQL Server, and .NET. The update includes one actively exploited zero-day vulnerability and multiple Critical-rated flaws demanding immediate attention from security teams. The most urgent fix this month is CVE - 2026 -21262, the sole zero-day ...
2026-06-03 22:33 UTC -
web:cybersecuritynews.com
Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.
2026-06-03 22:33 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-06-03 22:33 UTC -
web:support.microsoft.com
This out-of-band update for Windows 11, version 25H2 and 24H2 (KB5085518) includes fixes and improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates ...
2026-06-03 22:33 UTC -
web:vulmon.com
Vulnerability Summary A vulnerability was determined in NousResearch hermes-agent up to 5157f5427f19488b31c6fdebbacd15d798ce7f63. This affects the function detect ...
2026-06-03 22:33 UTC -
web:www.zdnet.com
Install Microsoft's emergency Windows patch now - what it fixes and why it was rushed out Microsoft issued an out-of-band fix after its latest update introduced a nasty surprise.
2026-06-03 22:33 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-9367.json.
{
"containers": {
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*"
],
"modules": [
"terminal_tool"
],
"product": "hermes-agent",
"vendor": "NousResearch",
"versions": [
{
"status": "affected",
"version": "5157f5427f19488b31c6fdebbacd15d798ce7f63"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Eric-i (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB CNA Team"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was determined in NousResearch hermes-agent up to 5157f5427f19488b31c6fdebbacd15d798ce7f63. This affects the function detect_dangerous_command of the file tools/approval.py of the component terminal_tool. This manipulation causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 7.3,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 7.3,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 7.5,
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "OS Command Injection",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-77",
"description": "Command Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-24T08:30:10.795Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-365330 | NousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command injection",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/365330"
},
{
"name": "VDB-365330 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/365330/cti"
},
{
"name": "Submit #812228 | NousResearch hermes-agent 5157f5427f19488b31c6fdebbacd15d798ce7f63 OS Command Injection (CWE-78)",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/812228"
},
{
"tags": [
"exploit"
],
"url": "https://gist.github.com/YLChen-007/75fb10319693e86106ced2ef3a472c80"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-05-23T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-05-23T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-05-23T12:38:25.000Z",
"value": "VulDB entry last update"
}
],
"title": "NousResearch hermes-agent terminal_tool approval.py detect_dangerous_command os command injection"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-9367",
"datePublished": "2026-05-24T08:30:10.795Z",
"dateReserved": "2026-05-23T10:33:13.039Z",
"dateUpdated": "2026-05-24T08:30:10.795Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}