CVE-2026-15311: Cross Site Scripting in NousResearch hermes-agent
A vulnerability was identified in NousResearch hermes-agent up to 2026.5.29.2. Affected by this issue is the function MatrixAdapter._markdown_to_html of the file gateway/platforms/matrix.py of the component Matrix Adapter. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit is publicly available and might be used. The pull request to fix this issue awaits acceptance.
CVE-2026-15311: Cross Site Scripting in NousResearch hermes-agent
Description
A vulnerability was identified in NousResearch hermes-agent up to 2026.5.29.2. Affected by this issue is the function MatrixAdapter._markdown_to_html of the file gateway/platforms/matrix.py of the component Matrix Adapter. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit is publicly available and might be used. The pull request to fix this issue awaits acceptance.
CVSS v4.0
Score 5.1medium
Affected software
cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-09T17:49:30.256Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a503a4168715ace434e6a78
Added to database: 07/10/2026, 00:18:09 UTC
Last updated: 07/10/2026, 00:18:09 UTC
Views: 1
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