CVE-2026-114463

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-114463", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-10-21T15:00:19.795Z", "datePublished": "2026-10-21T15:01:02.634Z", "dateUpdated": "2026-10-30T15:16:36.992Z"}, "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."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Nous Research", "product": "Hermes Agent", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "2026.8.19", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-863 Incorrect Authorization"}]}], "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"}], "x_generator": {"engine": "VINCE 3.0.51", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-114463"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-10-21T19:25:04.202Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-863", "lang": "en", "description": "CWE-863 Incorrect Authorization"}]}], "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"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-30T15:16:36.992Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "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": {"id": "CVE-2026-114463", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-30T15:16:28.449619Z"}}}], "references": [{"url": "https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-authz-bypass.md", "tags": ["exploit"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-30T15:15:26.771Z"}}], "cna": {"title": "CVE-2026-114463", "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Nous Research", "product": "Hermes Agent", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "2026.8.19"}]}], "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"}], "x_generator": {"env": "prod", "engine": "VINCE 3.0.51", "origin": "https://cveawg.mitre.org/api/cve/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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-863 Incorrect Authorization"}]}], "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-10-21T19:25:04.202Z"}}}, "cveMetadata": {"cveId": "CVE-2026-114463", "state": "PUBLISHED", "dateUpdated": "2026-10-30T15:16:36.992Z", "dateReserved": "2026-10-21T15:00:19.795Z", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "datePublished": "2026-10-21T15:01:02.634Z", "assignerShortName": "certcc"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "Hermes Agent", "vendor": "Nous Research", "versions": [{"lessThanOrEqual": "2026.8.19", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "cret@cert.org"}], "cveTags": [], "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."}], "id": "CVE-2026-114463", "lastModified": "2026-10-30T16:17:39.933", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-114463", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-30T15:16:28.449619Z", "version": "2.0.3"}}]}, "published": "2026-10-21T16:17:34.087", "references": [{"source": "cret@cert.org", "url": "https://github.com/NousResearch/hermes-agent/pull/115285"}, {"source": "cret@cert.org", "url": "https://github.com/NousResearch/hermes-agent/releases/tag/v0.22.2"}, {"source": "cret@cert.org", "url": "https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-authz-bypass.md"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-authz-bypass.md"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,2026.8.19]"}}], "enrichment": {"confidence": 98.0, "confidence_source": "matching", "scores": [{"score": 98.0, "source": "matching"}]}, "original": {"product": "Hermes Agent", "source": "cna", "vendor": "Nous Research"}, "product": "hermes-agent", "vendor": "nousresearch"}], "created": "2026-10-21T21:00:11.105618+00:00", "title": "Authorization Bypass via Colons in Webhook Route Names", "updated": "2026-10-30T21:30:12.522014+00:00", "vendors": ["nousresearch", "nousresearch$PRODUCT$hermes-agent"]}