CVE-2026-10223: NousResearch hermes-agent memory_tool.py _scan_memory_content injection

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-74

Description

A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. This affects the function _scan_memory_content of the file tools/memory_tool.py. This manipulation causes injection. The attack can be initiated 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 (+25)

References

https://gist.github.com/YLChen-007/a1fb77ad2488c545a35d0f66356ea7b4
https://vuldb.com/cve/CVE-2026-10223
https://vuldb.com/submit/822021
https://vuldb.com/vuln/367502
https://vuldb.com/vuln/367502/cti

Get alerted when CVE-2026-10223 or the next vulnerability affects your stack