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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.

PUBLISHED Reserved 2026-05-23 | Published 2026-05-24 | Updated 2026-05-26 | Assigner VulDB




MEDIUM: 6.9CVSS: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
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Missing Authorization

Incorrect Authorization

Product status

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

Timeline

2026-05-23:Advisory disclosed
2026-05-23:VulDB entry created
2026-05-23:VulDB entry last update

Credits

Eric-h (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/365313 (VDB-365313 | NousResearch hermes-agent Batch Runner approval.py check_all_command_guards authorization) vdb-entry technical-description

vuldb.com/vuln/365313/cti (VDB-365313 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/812213 (Submit #812213 | NousResearch hermes-agent 2026.4.16 Missing Authorization (CWE-862)) third-party-advisory

gist.github.com/YLChen-007/22cada4c9060f5123dde6185135ae3ab exploit

cve.org (CVE-2026-9350)

nvd.nist.gov (CVE-2026-9350)

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