CVE-2026-10221

HIGH 7.3

NousResearch hermes-agent run_agent.py _compress_context injection

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

15th

A vulnerability was identified in NousResearch hermes-agent up to 0.12.0. Affected by this vulnerability is the function _compress_context of the file run_agent.py. The manipulation leads to injection. It is possible to initiate the attack 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.

CWE	CWE-74 CWE-707
Vendor	nousresearch
Product	hermes-agent
Published	Jun 1, 2026
Last Updated	Jun 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

NousResearch / hermes-agent

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.10 0.11 0.12.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/367500 vuldb.com: https://vuldb.com/vuln/367500/cti vuldb.com: https://vuldb.com/cve/CVE-2026-10221 vuldb.com: https://vuldb.com/submit/822019 gist.github.com: https://gist.github.com/YLChen-007/d343fcfe2c009cd45f56dc475fd5ac03

Credits

🔍 Eric-j (VulDB User) VulDB CNA Team