low3.5
CVE-2026-15311
A vulnerability was identified in NousResearch hermes-agent up to 2026.5.29.2.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| NousResearch Hermes-Agent | before 2026.5.29.2. |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/NousResearch/hermes-agent/
- https://github.com/NousResearch/hermes-agent/issues/42667
- https://github.com/NousResearch/hermes-agent/pull/42759
- https://vuldb.com/cve/CVE-2026-15311
- https://vuldb.com/submit/852843
- https://vuldb.com/vuln/377247
- https://vuldb.com/vuln/377247/cti