CVE-2026-7113Public exploitNetwork attack vector

Unauthenticated command execution via disabled HMAC validation

Published Apr 27, 2026 · Updated Apr 27, 2026

Missing authentication in Hermes Agent 0.8.0 webhooks allows remote attackers to execute commands through an unsigned POST request. gateway/platforms/webhook.py skips HMAC validation when a route secret equals INSECURE_NO_AUTH and passes the request body to the agent as a prompt. Exploitation requires a reachable webhook route configured with that secret; commands run with the agent process's tool permissions.

CVSS severity5.6
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Hermes Agent 0.8.0 webhooks allows remote attackers to execute commands through an unsigned POST request. gateway/platforms/webhook.py skips HMAC validation when a route secret equals INSECURE_NO_AUTH and passes the request body to the agent as a prompt. Exploitation requires a reachable webhook route configured with that secret; commands run with the agent process's tool permissions.

The record

CVE
CVE-2026-7113
Published
Apr 27, 2026
Updated
Apr 27, 2026
Vendor
Nous Research
Product
Hermes Agent
Classifications
CWE-306, CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Nous Research · Hermes Agentversion=0.8.0

Published CVSS scores

5.1VulDBAV:N/AC:H/Au:N/C:P/I:P/A:P
5.6VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
2.9VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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