CVE-2026-14617
NousResearch hermes-agent Streaming Reasoning Tag Filter stream_consumer.py GatewayStreamConsumer._filter_and_accumulate case sensitivity
- State
- Published
- Severity
- 2.3 Low
- Published
- Jul 3, 2026
- Updated
- Jul 6, 2026
- Reserved
- Jul 3, 2026
Description
A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.30. Affected is the function GatewayStreamConsumer._filter_and_accumulate of the file gateway/stream_consumer.py of the component Streaming Reasoning Tag Filter. The manipulation leads to improper handling of case sensitivity. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used. The project decided to not implement a dedicated fix: "[T]he analysis and the fix are both sound. It just lands below the bar for the maintenance cost of a duplicated scrub path."
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.1 Low | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C | VulDB |
| 3.0 | 3.1 Low | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C | VulDB |
| 2.0 | 2.1 Low | AV:N/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
hermes-agentNousResearch |
|
References
- VDB-376134 | NousResearch hermes-agent Streaming Reasoning Tag Filter stream_consumer.py GatewayStreamConsumer._filter_and_accumulate case sensitivityvdb-entrytechnical-description
- VDB-376134 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-14617 | CVE Analysis and Reportthird-party-advisory
- Submit #844654 | Nous Research hermes-agent v2026.4.30 Improper Handling of Case Sensitivity Leading to Information Disclosure (CWE-178)third-party-advisory
- https://github.com/NousResearch/hermes-agent/issues/27288issue-tracking
- https://github.com/NousResearch/hermes-agent/pull/28631#issuecomment-4622188016issue-trackingpatch
- https://gist.github.com/YLChen-007/2229e5505bcbb3e15a7ae8fba4c4be37exploit
- https://github.com/NousResearch/hermes-agent/product
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.