NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service
Summary
| CVE | CVE-2026-14626 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-04 12:16:53 UTC |
| Updated | 2026-07-04 12:16:53 UTC |
| Description | A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. The impacted element is the function AIAgent.run_conversation of the file run_agent.py of the component HTTP API. This manipulation of the argument todos causes denial of service. 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. |
Risk And Classification
Primary CVSS: v4.0 2.1 LOW from [email protected]
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-404 | CWE-404 Denial of Service
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 2.1 | LOW | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/C... |
| 4.0 | CNA | DECLARED | 5.3 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P |
| 3.1 | [email protected] | Primary | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| 3.1 | CNA | DECLARED | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R |
| 3.0 | CNA | DECLARED | 4.3 | MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R |
| 2.0 | [email protected] | Secondary | 4 | AV:N/AC:L/Au:S/C:N/I:N/A:P | |
| 2.0 | CNA | DECLARED | 4 | AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
LowUser Interaction
NoneConfidentiality
NoneIntegrity
NoneAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
LowCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
LowCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | NousResearch | Hermes-agent | affected 2026.4.0 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.1 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.2 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.3 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.4 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.5 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.6 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.7 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.8 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.9 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.10 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.11 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.12 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.13 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.14 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.15 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.16 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.17 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.18 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.19 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.20 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.21 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.22 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.23 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.24 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.25 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.26 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.27 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.28 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.29 | Not specified |
| CNA | NousResearch | Hermes-agent | affected 2026.4.30 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| gist.github.com/YLChen-007/b91a85f9448beadebe25d37a3f4fd760 | [email protected] | gist.github.com | |
| vuldb.com/vuln/376142 | [email protected] | vuldb.com | |
| vuldb.com/submit/845596 | [email protected] | vuldb.com | |
| vuldb.com/vuln/376142/cti | [email protected] | vuldb.com | |
| vuldb.com/cve/CVE-2026-14626 | [email protected] | vuldb.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Eric-a (VulDB User) (en)
CNA: VulDB CNA Team (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-07-03T00:00:00.000Z | Advisory disclosed |
| CNA | 2026-07-03T02:00:00.000Z | VulDB entry created |
| CNA | 2026-07-03T19:13:02.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.