CVE-2026-14617
NousResearch hermes-agent Streaming Reasoning Tag Filter stream_consumer.py GatewayStreamConsumer._filter_and_accumulate case sensitivity
- Published
- Updated
- Reserved
- Assigned by
- VulDB
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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | Low2.3 | 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 |
| VulDBCNA (assigner) | 3.1 | Low3.1 | 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 |
| VulDBCNA (assigner) | 3.0 | Low3.1 | 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 |
| VulDBCNA (assigner) | 2.0 | Low2.1 | AV:N/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:C |
| NVDNVD · Deferred | 4.0 | Low1.3 | 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/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)
- 0.37% · top 68% 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: Low 2.3.
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 (8)
- VDB-376134 | NousResearch hermes-agent Streaming Reasoning Tag Filter stream_consumer.py GatewayStreamConsumer._filter_and_accumulate case sensitivity (opens in a new tab)vdb-entrytechnical-description
- VDB-376134 | CTI Indicators (IOB, IOC, IOA) (opens in a new tab)signaturepermissions-required
- CVE-2026-14617 | CVE Analysis and Report (opens in a new tab)third-party-advisory
- Submit #844654 | Nous Research hermes-agent v2026.4.30 Improper Handling of Case Sensitivity Leading to Information Disclosure (CWE-178) (opens in a new tab)third-party-advisoryexploit
- https://github.com/NousResearch/hermes-agent/issues/27288 (opens in a new tab)issue-tracking
- https://github.com/NousResearch/hermes-agent/pull/28631#issuecomment-4622188016 (opens in a new tab)issue-trackingpatch
- https://gist.github.com/YLChen-007/2229e5505bcbb3e15a7ae8fba4c4be37 (opens in a new tab)exploit
- https://github.com/NousResearch/hermes-agent/ (opens in a new tab)product
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-2026-14617)Record last updated .