A security flaw has been discovered in NousResearch hermes-agent up to 2026.4.30. Affected by this issue is the function _sanitize_env_lines of the file hermes_cli/config.py. The manipulation results in injection. It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity High

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00047.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
NousResearch hermes-agent affected
Version Status Constraints
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 —
2026.4.17 affected —
2026.4.18 affected —
2026.4.19 affected —
2026.4.20 affected —
2026.4.21 affected —
2026.4.22 affected —
2026.4.23 affected —
2026.4.24 affected —
2026.4.25 affected —
2026.4.26 affected —
2026.4.27 affected —
2026.4.28 affected —
2026.4.29 affected —
2026.4.30 affected —

No data.

No data.

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Vendors Products
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Hermes-agent Subscribe

Project Subscriptions

Vendors Products
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Hermes-agent Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gist.github.com/YLChen-007/7ee2eeaa383b3540d2e8854250c03fb0 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-10222 cve-icon cve-icon
https://vuldb.com/submit/822020 cve-icon cve-icon
https://vuldb.com/vuln/367501 cve-icon cve-icon
https://vuldb.com/vuln/367501/cti cve-icon cve-icon
History

Mon, 01 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 01 Jun 2026 05:45:00 +0000

Type Values Removed Values Added
Description A security flaw has been discovered in NousResearch hermes-agent up to 2026.4.30. Affected by this issue is the function _sanitize_env_lines of the file hermes_cli/config.py. The manipulation results in injection. It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Title NousResearch hermes-agent config.py _sanitize_env_lines injection
First Time appeared Nousresearch
Nousresearch hermes-agent
Weaknesses CWE-707
CWE-74
CPEs cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*
Vendors & Products Nousresearch
Nousresearch hermes-agent
References
Metrics cvssV2_0

{'score': 5.1, 'vector': 'AV:N/AC:H/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.6, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-06-01T13:16:34.171Z

Reserved: 2026-05-31T07:51:26.584Z

Link: CVE-2026-10222

cve-icon Vulnrichment

Updated: 2026-06-01T13:16:30.363Z

cve-icon NVD

Status : Deferred

Published: 2026-06-01T06:16:36.053

Modified: 2026-06-01T15:15:37.293

Link: CVE-2026-10222

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T06:30:22Z

Weaknesses