Improper Case Sensitivity in NousResearch hermes-agent Streaming Reasoning Tag Filter
CVE-2026-14617

2.3LOW

Key Information:

Vendor

Nousresearch

Status
Hermes-agent
Vendor
CVE Published:
3 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-14617?

A security flaw has been identified in the NousResearch hermes-agent, specifically in the Streaming Reasoning Tag Filter functionality. The vulnerability occurs within the GatewayStreamConsumer._filter_and_accumulate method in the file gateway/stream_consumer.py. The issue relates to improper handling of case sensitivity, which can lead to potential information disclosure. Although the analysis has deemed the flaw and its mitigation sound, the decision was made not to implement a dedicated fix due to maintenance cost considerations. This vulnerability can be exploited remotely, though its exploitability is considered challenging.

Affected Version(s)

hermes-agent 2026.4.0

hermes-agent 2026.4.1

hermes-agent 2026.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-14617 - Proof of Concept

References

https://vuldb.com/vuln/376134
vdb-entrytechnical-description
https://vuldb.com/vuln/376134/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-14617
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-a (VulDB User)
VulDB CNA Team
.