CVE-2026-108593
9router 0.4.1 through 0.5.99 contains a configuration injection vulnerability in the POST…
- Risk score
- 42/100
- CVSS
- 6.4 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 10 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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_…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.4 medium
References
- https://github.com/decolua/9router
- https://github.com/decolua/9router/blob/a99cf57239ff778b61e434c2786009d5ed1c412c/src/app/api/cli-tools/hermes-settings/route.js#L185-L223
- https://github.com/decolua/9router/blob/a99cf57239ff778b61e434c2786009d5ed1c412c/src/app/api/cli-tools/hermes-settings/route.js#L20-L35
- https://hackmd.io/@haind/9router-hermes-config-injection
- https://www.vulncheck.com/advisories/9router-0.4.1-through-0.5.99-config-injection-rce-via-hermes-settings-endpoint
- https://hackmd.io/@haind/9router-hermes-config-injection
Original description
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.
Last activity 10 Oct 2026. Patch Forecast updates every hour.