Medium 6.4Published Oct 10, 2026

CVE-2026-1085939router 0.4.1 through 0.5.99 Config Injection RCE via hermes-settings Endpoint

Updated under an hour ago (2026-10-19 09:50 UTC)

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It affects decolua 9router. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for decolua 9router

Exploited in the last 30 days

9router 0.4.1 through 0.5.99 contains a configuration injection vulnerability in the POST /api/cli-tools/hermes-settings endpoint that allows authenticated dashboard users to inject arbitrary keys into the Hermes Agent config.yaml file. Attackers can submit a baseUrl containing double quotes and newlines to add hooks_auto_accept and a hooks.post_llm_call shell command, which Hermes Agent executes without approval after an LLM call.

CVSS: 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 13, 2026
First seen by InfoSec Signals: Oct 10, 2026

Affected products

Affected products

decolua 9router decolua:9router (from the name)	from 0.4.1 through 0.5.99	CNA record

References

https://hackmd.io/@haind/9router-hermes-config-injectionthird-party-advisory
https://github.com/decolua/9router/blob/a99cf57239ff778b61e434c2786009d5ed1c412c/src/app/api/cli-tools/hermes-settings/route.js#L20-L35technical-description
https://github.com/decolua/9router/blob/a99cf57239ff778b61e434c2786009d5ed1c412c/src/app/api/cli-tools/hermes-settings/route.js#L185-L223technical-description
https://github.com/decolua/9routerproduct
https://www.vulncheck.com/advisories/9router-0.4.1-through-0.5.99-config-injection-rce-via-hermes-settings-endpointthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.