What’s Vulnerable › Vulnerabilities

CVE-2026-9352: NousResearch hermes-agent Messaging Gateway local.py _make_run_env information disclosure

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-24 · updated 2026-07-23
• Weakness: CWE-200

Description

A 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.

Affected products

• NousResearch hermes-agent: 2026.4.0, 2026.4.1, 2026.4.2, 2026.4.3, 2026.4.4, 2026.4.5 (+18)

References

• https://gist.github.com/YLChen-007/760b3940f708990e535214529c0c7a27
• https://vuldb.com/submit/812215
• https://vuldb.com/vuln/365315
• https://vuldb.com/vuln/365315/cti

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