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CVE-2026-15311

LOW
3.5
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-15311
State
PUBLISHED
Assigner
VulDB
Reserved
2026-07-09 17:49 UTC
Published
2026-07-09 23:45 UTC
Last updated
2026-07-09 23:45 UTC
Primary CWE
CWE-79
Cross Site Scripting
Vendor / Product
NousResearch / hermes-agent
Sources
cve.org  ·  NVD

Severity & Metrics

3.5 LOW CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
Affected products (1)
VendorProductPlatformVersions
NousResearch hermes-agent — 2026.5.29.0, 2026.5.29.1, 2026.5.29.2
Weakness (CWE)
CWESourceDescription
CWE-79 cna Cross Site Scripting
CWE-94 cna Code Injection
CVSS scores (4)
ScoreSeverityVersionSourceVector
5.1 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
4.0 N/D 2.0 cna AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:C
3.5 LOW 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
3.5 LOW 3.0 cna CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
References (7)
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