{"id":"CVE-2026-114463","state":"PUBLISHED","title":"CVE-2026-114463","description":"The webhook platform gateway in Nous Research Hermes Agent versions builds the session chat_id as webhook:{route_name}:{delivery_id} and re-derives the authorizing route by splitting that string, so a route name containing a \":\" resolves toolset authorization to a different, higher-privileged prefix route than the one authenticated, which allows a remote attacker with the target HMAC to gain that higher-privileged route's toolsets.","publishedAt":"2026-10-21T15:01:02.634Z","updatedAt":"2026-10-30T15:16:36.992Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"certcc","products":["Nous Research Hermes Agent"],"affected":[{"vendor":"Nous Research","product":"Hermes Agent","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2026.8.19","versionType":"custom"}]}],"references":["https://github.com/NousResearch/hermes-agent/pull/115285","https://github.com/NousResearch/hermes-agent/releases/tag/v0.22.2","https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-authz-bypass.md"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-30T15:28:07.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/114xxx/CVE-2026-114463.json","commit":"2dd2c702f7243e3dc10f8d67fb014c71366252bc","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-114463","state":"PUBLISHED","datePublished":"2026-10-21T15:01:02.634Z","dateUpdated":"2026-10-30T15:16:36.992Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-10-21T15:00:19.795Z"},"containers":{"cna":{"title":"CVE-2026-114463","descriptions":[{"lang":"en","value":"The webhook platform gateway in Nous Research Hermes Agent versions builds the session chat_id as webhook:{route_name}:{delivery_id} and re-derives the authorizing route by splitting that string, so a route name containing a \":\" resolves toolset authorization to a different, higher-privileged prefix route than the one authenticated, which allows a remote attacker with the target HMAC to gain that higher-privileged route's toolsets."}],"affected":[{"vendor":"Nous Research","product":"Hermes Agent","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2026.8.19","versionType":"custom"}]}],"references":[{"url":"https://github.com/NousResearch/hermes-agent/pull/115285"},{"url":"https://github.com/NousResearch/hermes-agent/releases/tag/v0.22.2"},{"url":"https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-authz-bypass.md"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-863 Incorrect Authorization"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-10-21T19:25:04.202Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.51","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-114463"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-authz-bypass.md","tags":["exploit"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T15:16:28.449619Z","id":"CVE-2026-114463","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","type":"CWE","lang":"en","description":"CWE-863 Incorrect Authorization"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-30T15:16:36.992Z"}}]}}}