CVE-2026-14626
NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service
- Published
- Updated
- Reserved
- Assigned by
- VulDB
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.
Public exploit
A reference of the record is tagged as an exploit or proof of concept: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By VulDB
- 1 day later
· 1 day later
Published
- 3 days later
· 3 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | Medium5.3 | 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 |
| VulDBCNA (assigner) | 3.1 | Medium4.3 | 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 |
| VulDBCNA (assigner) | 3.0 | Medium4.3 | 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 |
| VulDBCNA (assigner) | 2.0 | Medium4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR |
| NVDNVD · Deferred | 4.0 | Low2.1 | 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 |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
- affected 2026.4.0
- affected 2026.4.1
- affected 2026.4.2
- affected 2026.4.3
- affected 2026.4.4
- affected 2026.4.5
- affected 2026.4.6
- affected 2026.4.7
- affected 2026.4.8
- affected 2026.4.9
- affected 2026.4.10
- affected 2026.4.11
- affected 2026.4.12
- affected 2026.4.13
- affected 2026.4.14
- affected 2026.4.15
- affected 2026.4.16
- affected 2026.4.17
- affected 2026.4.18
- affected 2026.4.19
- affected 2026.4.20
- affected 2026.4.21
- affected 2026.4.22
- affected 2026.4.23
- affected 2026.4.24
- affected 2026.4.25
- affected 2026.4.26
- affected 2026.4.27
- affected 2026.4.28
- affected 2026.4.29
- affected 2026.4.30
References (5)
- VDB-376142 | NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service (opens in a new tab)vdb-entrytechnical-description
- VDB-376142 | CTI Indicators (IOB, IOC, TTP, IOA) (opens in a new tab)signaturepermissions-required
- CVE-2026-14626 | CVE Analysis and Report (opens in a new tab)third-party-advisory
- Submit #845596 | NousResearch Hermes Agent <= v2026.4.30 Insufficient Verification of Data Authenticity (CWE-345) (opens in a new tab)third-party-advisory
- https://gist.github.com/YLChen-007/b91a85f9448beadebe25d37a3f4fd760 (opens in a new tab)exploit
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-14626)Record last updated .