CVE-2026-9350
📛 CVE Title
NousResearch hermes-agent Batch Runner approval.py check_all_command_guards authorization
Description
A vulnerability was identified in NousResearch hermes-agent up to 2026.4.16. This affects the function check_all_command_guards of the file tools/approval.py of the component Batch Runner. Such manipulation leads to missing authorization. The attack can be launched 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.
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-862,CWE-863 - Reserved
- 2026-05-23
- Published
- 2026-05-24 02:45 UTC
- Last updated
- 2026-05-24 02:45 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/9xxx/CVE-2026-9350.json
- Linked Threat
- CVE-2026-9350 — CVE-2026-9350
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
- 0.0004 (probability of exploitation in next 30 days)
- EPSS percentile
- 11.49% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 00:18 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-2026-31560 - Assigner
- VulDB
- Published
- May 24, 2026, 2:45:10 AM
- Updated
- May 26, 2026, 5:48:19 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
- 0.0500
- Vendors
- NousResearch
- Products
-
hermes-agent (2026.4.8)hermes-agent (2026.4.9)hermes-agent (2026.4.16)hermes-agent (2026.4.10)hermes-agent (2026.4.2)hermes-agent (2026.4.6)hermes-agent (2026.4.4)hermes-agent (2026.4.12)hermes-agent (2026.4.5)hermes-agent (2026.4.3)hermes-agent (2026.4.0)hermes-agent (2026.4.14)hermes-agent (2026.4.11)hermes-agent (2026.4.13)hermes-agent (2026.4.7)hermes-agent (2026.4.15)hermes-agent (2026.4.1)
- Aliases
-
GHSA-4j8w-8wvv-4969
ENISA description: A vulnerability was identified in NousResearch hermes-agent up to 2026.4.16. This affects the function check_all_command_guards of the file tools/approval.py of the component Batch Runner. Such manipulation leads to missing authorization. The attack can be launched 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.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| NousResearch | hermes-agent |
2026.4.0 (affected),
2026.4.1 (affected),
2026.4.2 (affected),
2026.4.3 (affected),
2026.4.4 (affected),
2026.4.5 (affected),
2026.4.6 (affected),
2026.4.7 (affected),
2026.4.8 (affected),
2026.4.9 (affected),
2026.4.10 (affected),
2026.4.11 (affected),
2026.4.12 (affected),
2026.4.13 (affected),
2026.4.14 (affected),
2026.4.15 (affected),
2026.4.16 (affected)
|
— |
Vendor references (4)
References embedded in the original CVE record by the assigning CNA.
- VDB-365313 | NousResearch hermes-agent Batch Runner approval.py check_all_command_guards authorization vdb-entrytechnical-description
- VDB-365313 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
- Submit #812213 | NousResearch hermes-agent 2026.4.16 Missing Authorization (CWE-862) third-party-advisory
- https://gist.github.com/YLChen-007/22cada4c9060f5123dde6185135ae3ab exploit
Web references (7)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://gist.github.com/YLChen-007/22cada4c9060f5123dde6185135ae3ab tenable:gist.github.com
- https://nvd.nist.gov/vuln/detail/CVE-2026-9350 tenable:nvd.nist.gov
- https://vuldb.com/submit/812213 tenable:vuldb.com
- https://vuldb.com/vuln/365313 tenable:vuldb.com
- https://vuldb.com/vuln/365313/cti tenable:vuldb.com
- https://www.cve.org/CVERecord?id=CVE-2026-9350 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
Remediations (18)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:access.redhat.com
Learn about our open source products, services, and company. You are here
2026-05-26 03:09 UTC -
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 ...
2026-05-26 03:09 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.
2026-05-26 03:09 UTC -
web:translate.google.com
Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.
2026-05-26 03:09 UTC -
web:www.computerworld.com
Microsoft says it is considering a patch for a zero-day vulnerability, dubbed YellowKey, that allows attackers with access to a Windows device to bypass Bitlocker encryption protection and read ...
2026-05-26 03:09 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-26 03:09 UTC -
web:www.msn.com
Microsoft suggests the threat is being used in phishing attacks against vulnerable systems since successful exploitation requires local access to the PC.
2026-05-26 03:09 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-26 03:09 UTC -
web:www.sentinelone.com
CVE - 2026 -20963 is a remote code execution vulnerability in Microsoft SharePoint Server. Learn about its impact, affected versions, and mitigation methods.
2026-05-26 03:09 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 .
2026-05-26 03:09 UTC -
web:attack.mitre.org
WSUS: Manage and deploy Microsoft updates across the organization. ManageEngine Patch Manager Plus: Automate patch deployment for OS and third-party apps. Ansible: Automate updates across multiple platforms, including Linux and Windows. Vulnerability Scanning Tools: OpenVAS: Open-source vulnerability scanning to identify missing patches.
2026-06-03 22:32 UTC -
web:blog.qualys.com
With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.
2026-06-03 22:32 UTC -
web:www.computerworld.com
Here's a look at the most recent Patch Tuesday release from Microsoft as well as a collection of recent updates so you can track what's changed.
2026-06-03 22:32 UTC -
web:www.forbes.com
Microsoft has confirmed that SharePoint Server is under mass global attack. Breaking: An emergency patch has now been released — update immediately.
2026-06-03 22:32 UTC -
web:www.lansweeper.com
Which vulnerabilities, issues, and other things did Microsoft update? Discover what's new using Lansweeper's Patch Tuesday May 2026 summary.
2026-06-03 22:32 UTC -
web:www.oracle.com
Critical Patch Updates and Security Alerts are fixes for security defects in Oracle, PeopleSoft, JD Edwards and Sun products.
2026-06-03 22:32 UTC -
web:www.tenable.com
A vulnerability was identified in NousResearch hermes-agent up to 2026.4.16. This affects the function check_all_command_guards of the file tools/approval.py of the component Batch Runner. Such manipulation leads to missing authorization. The attack can be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not ...
2026-06-03 22:32 UTC -
web:www.virustotal.com
VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.
2026-06-03 22:32 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-9350.json.
{
"containers": {
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*"
],
"modules": [
"Batch Runner"
],
"product": "hermes-agent",
"vendor": "NousResearch",
"versions": [
{
"status": "affected",
"version": "2026.4.0"
},
{
"status": "affected",
"version": "2026.4.1"
},
{
"status": "affected",
"version": "2026.4.2"
},
{
"status": "affected",
"version": "2026.4.3"
},
{
"status": "affected",
"version": "2026.4.4"
},
{
"status": "affected",
"version": "2026.4.5"
},
{
"status": "affected",
"version": "2026.4.6"
},
{
"status": "affected",
"version": "2026.4.7"
},
{
"status": "affected",
"version": "2026.4.8"
},
{
"status": "affected",
"version": "2026.4.9"
},
{
"status": "affected",
"version": "2026.4.10"
},
{
"status": "affected",
"version": "2026.4.11"
},
{
"status": "affected",
"version": "2026.4.12"
},
{
"status": "affected",
"version": "2026.4.13"
},
{
"status": "affected",
"version": "2026.4.14"
},
{
"status": "affected",
"version": "2026.4.15"
},
{
"status": "affected",
"version": "2026.4.16"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Eric-h (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB CNA Team"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was identified in NousResearch hermes-agent up to 2026.4.16. This affects the function check_all_command_guards of the file tools/approval.py of the component Batch Runner. Such manipulation leads to missing authorization. The attack can be launched 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."
}
],
"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-862",
"description": "Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "Incorrect Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-24T02:45:10.330Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-365313 | NousResearch hermes-agent Batch Runner approval.py check_all_command_guards authorization",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/365313"
},
{
"name": "VDB-365313 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/365313/cti"
},
{
"name": "Submit #812213 | NousResearch hermes-agent 2026.4.16 Missing Authorization (CWE-862)",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/812213"
},
{
"tags": [
"exploit"
],
"url": "https://gist.github.com/YLChen-007/22cada4c9060f5123dde6185135ae3ab"
}
],
"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": "2026-05-23T11:24:46.000Z",
"value": "VulDB entry last update"
}
],
"title": "NousResearch hermes-agent Batch Runner approval.py check_all_command_guards authorization"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-9350",
"datePublished": "2026-05-24T02:45:10.330Z",
"dateReserved": "2026-05-23T09:19:30.069Z",
"dateUpdated": "2026-05-24T02:45:10.330Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}