Nous Research Hermes Agent · Webhook Platform Gateway
Source GCVE Database
Not known to be exploited · CVSS 7.5 High.
Data as of 30 Oct 2026, 21:06 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 7.5 |
|---|
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Nous ResearchHermes Agent | Affected
| Fixed in– |
GitHubnousresearch/hermes-agentpkg:github/nousresearch/hermes-agentOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, restrict access to the webhook platform gateway and monitor for suspicious activity involving route names containing colons. Avoid using route names with colons if possible.
Description
A vulnerability in Nous Research Hermes Agent's webhook platform gateway allows a remote attacker to escalate privileges by manipulating the session chat_id. The chat_id is constructed as webhook:{route_name}:{delivery_id}, and the route name is parsed by splitting on colons. If the route name contains a colon, this parsing can cause the authorization to resolve to a higher-privileged route than intended, enabling unauthorized access to privileged toolsets.
References
- nvd.nist.gov/vuln/detail/CVE-2026-114463 (opens in a new tab)
- github.com/NousResearch/hermes-agent/pull/115285 (opens in a new tab)
- github.com/NousResearch/hermes-agent/releases/tag/v0.22.2 (opens in a new tab)
- github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-authz-bypass.md (opens in a new tab)