Skip to main content
Press slash or control plus K to focus the search. Use the arrow keys to navigate results and press enter to open a threat.
Reconnecting to live updates…

CVE-2026-10221: Injection in NousResearch hermes-agent

0
Medium
VulnerabilityCVE-2026-10221cvecve-2026-10221
Published: Mon Jun 01 2026 (06/01/2026, 03:45:08 UTC)
Source: CVE Database V5
Vendor/Project: NousResearch
Product: hermes-agent

Description

CVE-2026-10221 is a medium-severity injection vulnerability in the NousResearch hermes-agent up to version 0. 12. 0. The issue exists in the _compress_context function within run_agent. py and can be exploited remotely without authentication. Although an exploit is publicly available, there is no vendor response or official patch at this time. The vulnerability allows injection attacks that may impact confidentiality, integrity, and availability to a limited extent.

CVSS v4.0

Score 6.9medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
Low
Vuln. Integrity
Low
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS: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

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 06/01/2026, 20:04:23 UTC

Technical Analysis

This vulnerability affects the NousResearch hermes-agent versions 0.1 through 0.12.0 in the _compress_context function of run_agent.py. It allows remote attackers to perform injection attacks due to improper input handling. The CVSS 4.0 base score is 6.9, indicating a medium severity with network attack vector, no privileges or user interaction required, and partial impact on confidentiality, integrity, and availability. The vendor has not provided any advisory or patch, and no official remediation level is assigned.

Potential Impact

Successful exploitation can lead to injection attacks that may partially compromise confidentiality, integrity, and availability of the affected system. The vulnerability can be triggered remotely without authentication or user interaction. However, the impact is limited as indicated by the CVSS vector. There are no known exploits in the wild beyond the publicly available proof-of-concept.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded or released a fix, users should monitor official channels for updates. Until a patch is available, consider restricting network access to the hermes-agent service and applying any available application-level input validation or filtering as a temporary mitigation.

Pro Console: star threats, build custom feeds, automate alerts via Slack, email & webhooks.Upgrade to Pro

Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-05-31T07:51:23.739Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a1de30ee29bf47b503a5825

Added to database: 6/1/2026, 7:52:46 PM

Last enriched: 6/1/2026, 8:04:23 PM

Last updated: 6/2/2026, 7:25:46 AM

Views: 9

Community Reviews

0 reviews

Crowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.

Sort by
Loading community insights…

Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.

Actions

PRO

Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.

Please log in to the Console to use AI analysis features.

Need more coverage?

Upgrade to Pro Console for AI refresh and higher limits.

For incident response and remediation, OffSeq services can help resolve threats faster.

Latest Threats

Breach by OffSeqOFFSEQFRIENDS — 25% OFF

Check if your credentials are on the dark web

Instant breach scanning across billions of leaked records. Free tier available.

Scan now
OffSeq TrainingCredly Certified

Lead Pen Test Professional

Technical5-day eLearningPECB Accredited
View courses