hermes-agent Prompt and Context Injection Flaws

Remote code/prompt injection in NousResearch Hermes Agent through 0.12.0 stems from improper neutralization in the _compress_context function within run_agent.py (CWE-74). Publicly available exploit code exists and the issue is remotely triggerable without authentication per the CVSS vector, though impact is bounded to Low across confidentiality, integrity, and availability. The vendor was contacted but did not respond, leaving downstream users without an official fix at time of analysis.

Remote injection in NousResearch Hermes Agent through version 2026.4.30 allows unauthenticated attackers to manipulate the _serve_plugin_skill/skill_view function in tools/skills_tool.py. Publicly available exploit code exists via a GitHub gist, and the vendor has not responded to disclosure attempts, leaving deployments without an official fix. CVSS 7.3 reflects network-reachable, low-complexity exploitation with partial impact across confidentiality, integrity, and availability.