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."

Attack Vector Network

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity High

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
NousResearch hermes-agent affected
Version Status Constraints
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 affected —

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Project Subscriptions

Vendors Products
Nousresearch Subscribe
Hermes-agent Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gist.github.com/YLChen-007/2229e5505bcbb3e15a7ae8fba4c4be37 cve-icon
https://github.com/NousResearch/hermes-agent/ cve-icon
https://github.com/NousResearch/hermes-agent/issues/27288 cve-icon
https://github.com/NousResearch/hermes-agent/pull/28631#issuecomment-4622188016 cve-icon
https://vuldb.com/cve/CVE-2026-14617 cve-icon
https://vuldb.com/submit/844654 cve-icon
https://vuldb.com/vuln/376134 cve-icon
https://vuldb.com/vuln/376134/cti cve-icon
History

Fri, 03 Jul 2026 22:00:00 +0000

Type Values Removed Values Added
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."
Title NousResearch hermes-agent Streaming Reasoning Tag Filter stream_consumer.py GatewayStreamConsumer._filter_and_accumulate case sensitivity
First Time appeared Nousresearch
Nousresearch hermes-agent
Weaknesses CWE-178
CWE-697
CPEs cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*
Vendors & Products Nousresearch
Nousresearch hermes-agent
References
Metrics cvssV2_0

{'score': 2.1, 'vector': 'AV:N/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 3.1, 'vector': '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'}

cvssV3_1

{'score': 3.1, 'vector': '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'}

cvssV4_0

{'score': 2.3, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-07-03T21:45:10.246Z

Reserved: 2026-07-03T16:31:16.337Z

Link: CVE-2026-14617

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses