NousResearch hermes-agent Messaging Gateway local.py _make_run_env information disclosure

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-9352
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-24 05:16:40 UTC
Updated2026-05-26 19:50:21 UTC
DescriptionA weakness has been identified in NousResearch hermes-agent up to 2026.4.23. This issue affects the function _make_run_env of the file tools/environments/local.py of the component Messaging Gateway Handler. Executing a manipulation can lead to information disclosure. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Risk And Classification

Primary CVSS: v4.0 5.5 MEDIUM from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.000390000 probability, percentile 0.120240000 (date 2026-05-31)

Problem Types: CWE-200 | CWE-284 | CWE-200 Information Disclosure | CWE-284 Improper Access Controls

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.5MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED6.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.1[email protected]Primary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
3.0CNADECLARED5.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
2.0[email protected]Secondary5AV:N/AC:L/Au:N/C:P/I:N/A:N
2.0CNADECLARED5AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA NousResearch Hermes-agent affected 2026.4.0 Not specified
CNA NousResearch Hermes-agent affected 2026.4.1 Not specified
CNA NousResearch Hermes-agent affected 2026.4.2 Not specified
CNA NousResearch Hermes-agent affected 2026.4.3 Not specified
CNA NousResearch Hermes-agent affected 2026.4.4 Not specified
CNA NousResearch Hermes-agent affected 2026.4.5 Not specified
CNA NousResearch Hermes-agent affected 2026.4.6 Not specified
CNA NousResearch Hermes-agent affected 2026.4.7 Not specified
CNA NousResearch Hermes-agent affected 2026.4.8 Not specified
CNA NousResearch Hermes-agent affected 2026.4.9 Not specified
CNA NousResearch Hermes-agent affected 2026.4.10 Not specified
CNA NousResearch Hermes-agent affected 2026.4.11 Not specified
CNA NousResearch Hermes-agent affected 2026.4.12 Not specified
CNA NousResearch Hermes-agent affected 2026.4.13 Not specified
CNA NousResearch Hermes-agent affected 2026.4.14 Not specified
CNA NousResearch Hermes-agent affected 2026.4.15 Not specified
CNA NousResearch Hermes-agent affected 2026.4.16 Not specified
CNA NousResearch Hermes-agent affected 2026.4.17 Not specified
CNA NousResearch Hermes-agent affected 2026.4.18 Not specified
CNA NousResearch Hermes-agent affected 2026.4.19 Not specified
CNA NousResearch Hermes-agent affected 2026.4.20 Not specified
CNA NousResearch Hermes-agent affected 2026.4.21 Not specified
CNA NousResearch Hermes-agent affected 2026.4.22 Not specified
CNA NousResearch Hermes-agent affected 2026.4.23 Not specified

References

ReferenceSourceLinkTags
gist.github.com/YLChen-007/760b3940f708990e535214529c0c7a27 [email protected] gist.github.com
vuldb.com/vuln/365315 [email protected] vuldb.com
vuldb.com/submit/812215 [email protected] vuldb.com
vuldb.com/vuln/365315/cti [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Eric-i (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-23T00:00:00.000ZAdvisory disclosed
CNA2026-05-23T02:00:00.000ZVulDB entry created
CNA2026-05-23T11:24:51.000ZVulDB entry last update
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