High severity7.3NVD Advisory· Published Jun 1, 2026· Updated Jul 22, 2026
CVE-2026-10221
CVE-2026-10221
Description
A vulnerability was identified in NousResearch hermes-agent up to 0.12.0. Affected by this vulnerability is the function _compress_context of the file run_agent.py. The manipulation leads to injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
hermes-agentPyPI | <= 0.19.0 | — |
Affected products
1- Range: <=0.12.0
Patches
Vulnerability mechanics
References
10- github.com/advisories/GHSA-xq8w-9jvx-gm3vghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-10221ghsaADVISORY
- gist.github.com/YLChen-007/d343fcfe2c009cd45f56dc475fd5ac03nvdWEB
- github.com/NousResearch/hermes-agent/commit/2ca38e5df43411afe11aedfc34bfd71a2eecd4bbghsaWEB
- github.com/NousResearch/hermes-agent/issues/26979ghsaWEB
- github.com/NousResearch/hermes-agent/pull/69860ghsaWEB
- vuldb.com/cve/CVE-2026-10221nvdWEB
- vuldb.com/submit/822019nvdWEB
- vuldb.com/vuln/367500nvdWEB
- vuldb.com/vuln/367500/ctinvdWEB
News mentions
1- Hermes Agent: Five Injection Flaws Disclosed, Two High-Severity with Public ExploitsVypr Intelligence · Jun 1, 2026