Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') Affecting hermes-agent package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-HERMESAGENT-18507994
- published2 Aug 2026
- disclosed1 Jun 2026
- creditUnknown
Introduced: 1 Jun 2026
CVE-2026-10221 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
hermes-agent is a The self-improving AI agent — creates skills from experience, improves them during use, and runs anywhere
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') via the _compress_context function. An attacker can execute arbitrary code or inject malicious input by supplying crafted data to the affected process.