CVE-2026-29023

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-29023", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-03-03T17:24:13.913Z", "datePublished": "2026-03-09T17:46:57.547Z", "dateUpdated": "2026-11-08T14:01:52.696Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-08T14:01:52.696Z"}, "title": "Keygraph Shannon Hard-coded Router API Key", "descriptions": [{"lang": "en", "value": "Keygraph Shannon contains a hard-coded API key in its router configuration that, when the router component is enabled and exposed, allows network attackers to authenticate using the publicly known static key. An attacker able to reach the router port can proxy requests through the Shannon instance using the victim\u2019s configured upstream provider API credentials, resulting in unauthorized API usage and potential disclosure of proxied request and response data. This vulnerability's general exploitability has been mitigated with the introduction of commit 023cc95.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Keygraph Shannon contains a hard-coded API key in its router configuration that, when the router component is enabled and exposed, allows network attackers to authenticate using the publicly known static key. An attacker able to reach the router port can proxy requests through the Shannon instance using the victim\u2019s configured upstream provider API credentials, resulting in unauthorized API usage and potential disclosure of proxied request and response data. This vulnerability's general exploitability has been mitigated with the introduction of commit 023cc95."}]}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-798", "description": "CWE-798 Use of Hard-coded Credentials", "type": "CWE"}]}], "affected": [{"vendor": "KeygraphHQ", "product": "Shannon", "repo": "https://github.com/KeygraphHQ/shannon", "versions": [{"status": "affected", "version": "0", "lessThan": "023cc953db742602964b7826105278d15c28a420", "versionType": "git"}], "defaultStatus": "unknown", "packageURL": "pkg:github/KeygraphHQ/shannon"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 6.9, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW", "baseSeverity": "HIGH", "baseScore": 7.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"}}], "references": [{"url": "https://github.com/KeygraphHQ/shannon/issues/186", "tags": ["issue-tracking"]}, {"url": "https://github.com/KeygraphHQ/shannon/pull/224", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/KeygraphHQ/shannon/pull/224/changes/023cc953db742602964b7826105278d15c28a420", "tags": ["issue-tracking", "patch"]}, {"url": "https://www.vulncheck.com/advisories/keygraph-shannon-hard-coded-router-api-key", "tags": ["third-party-advisory"]}], "credits": [{"lang": "en", "value": "Valentin Lobstein (Chocapikk)", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-12T14:55:53.300592Z", "id": "CVE-2026-29023", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-12T14:56:06.503Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-29023", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-12T14:55:53.300592Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-12T14:56:01.324Z"}}], "cna": {"title": "Keygraph Shannon Hard-coded Router API Key", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Valentin Lobstein (Chocapikk)"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.9, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/KeygraphHQ/shannon", "vendor": "KeygraphHQ", "product": "Shannon", "versions": [{"status": "affected", "version": "0", "lessThan": "023cc953db742602964b7826105278d15c28a420", "versionType": "git"}], "packageURL": "pkg:github/KeygraphHQ/shannon", "defaultStatus": "unknown"}], "references": [{"url": "https://github.com/KeygraphHQ/shannon/issues/186", "tags": ["issue-tracking"]}, {"url": "https://github.com/KeygraphHQ/shannon/pull/224", "tags": ["issue-tracking", "patch"]}, {"url": "https://github.com/KeygraphHQ/shannon/pull/224/changes/023cc953db742602964b7826105278d15c28a420", "tags": ["issue-tracking", "patch"]}, {"url": "https://www.vulncheck.com/advisories/keygraph-shannon-hard-coded-router-api-key", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "value": "Keygraph Shannon contains a hard-coded API key in its router configuration that, when the router component is enabled and exposed, allows network attackers to authenticate using the publicly known static key. An attacker able to reach the router port can proxy requests through the Shannon instance using the victim\u2019s configured upstream provider API credentials, resulting in unauthorized API usage and potential disclosure of proxied request and response data. This vulnerability's general exploitability has been mitigated with the introduction of commit 023cc95.", "supportingMedia": [{"type": "text/html", "value": "Keygraph Shannon contains a hard-coded API key in its router configuration that, when the router component is enabled and exposed, allows network attackers to authenticate using the publicly known static key. An attacker able to reach the router port can proxy requests through the Shannon instance using the victim\u2019s configured upstream provider API credentials, resulting in unauthorized API usage and potential disclosure of proxied request and response data. This vulnerability's general exploitability has been mitigated with the introduction of commit 023cc95.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-798", "description": "CWE-798 Use of Hard-coded Credentials"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-08T14:01:52.696Z"}}}, "cveMetadata": {"cveId": "CVE-2026-29023", "state": "PUBLISHED", "dateUpdated": "2026-11-08T14:01:52.696Z", "dateReserved": "2026-03-03T17:24:13.913Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-03-09T17:46:57.547Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "packageURL": "pkg:github/KeygraphHQ/shannon", "product": "Shannon", "repo": "https://github.com/KeygraphHQ/shannon", "vendor": "KeygraphHQ", "versions": [{"lessThan": "023cc953db742602964b7826105278d15c28a420", "status": "affected", "version": "0", "versionType": "git"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Keygraph Shannon contains a hard-coded API key in its router configuration that, when the router component is enabled and exposed, allows network attackers to authenticate using the publicly known static key. An attacker able to reach the router port can proxy requests through the Shannon instance using the victim\u2019s configured upstream provider API credentials, resulting in unauthorized API usage and potential disclosure of proxied request and response data. This vulnerability's general exploitability has been mitigated with the introduction of commit 023cc95."}, {"lang": "es", "value": "Keygraph Shannon contiene una clave API codificada de forma r\u00edgida en su configuraci\u00f3n de router que, cuando el componente del router est\u00e1 habilitado y expuesto, permite a los atacantes de red autenticarse utilizando la clave est\u00e1tica p\u00fablicamente conocida. Un atacante capaz de alcanzar el puerto del router puede redirigir solicitudes a trav\u00e9s de la instancia de Shannon utilizando las credenciales de API del proveedor ascendente configurado de la v\u00edctima, lo que resulta en un uso no autorizado de la API y la posible divulgaci\u00f3n de datos de solicitudes y respuestas redirigidas. La explotabilidad general de esta vulnerabilidad ha sido mitigada con la introducci\u00f3n del commit 023cc95."}], "id": "CVE-2026-29023", "lastModified": "2026-07-14T19:16:55.753", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-29023", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-12T14:55:53.300592Z", "version": "2.0.3"}}]}, "published": "2026-03-09T18:16:22.727", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/KeygraphHQ/shannon/issues/186"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/KeygraphHQ/shannon/pull/224"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/KeygraphHQ/shannon/pull/224/changes/023cc953db742602964b7826105278d15c28a420"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/keygraph-shannon-hard-coded-router-api-key"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-798"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,commit 023cc95)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Shannon", "source": "cna", "vendor": "KeygraphHQ"}, "product": "shannon", "vendor": "keygraphhq"}], "analysis": {"en": {"generated_at": "2026-04-16T03:59:22.665472+00:00", "value": {"mitigation_remediation": ["Update to a version based on commit 023cc95 or later where the hard\u2011coded API key has been removed.", "Disable or restrict network access to the router port if the router functionality is not required for the deployment scenario.", "Review and rotate upstream provider API credentials, and ensure they are stored securely and not hard\u2011coded or exposed in the application configuration."], "summary": {"action": "Apply Patch", "impact": "Unauthorized API Access and Potential Data Disclosure"}, "threat_synthesis": {"affected_systems": "KeygraphHQ Shannon, specifically the router component that is enabled and exposed to the network. No specific product version is listed in the CNA data; the issue applies to all releases containing the hard\u2011coded key until the fix commit is applied.", "description_and_impact": "The vulnerability arises from a hard\u2011coded API key embedded in the router configuration of KeygraphHQ's Shannon application. When the router component is enabled and its port is reachable, an attacker can use the publicly known key to authenticate with the upstream provider\u2019s API. This grants the attacker the ability to proxy requests through the Shannon instance, resulting in unauthorized API usage and the possible disclosure of both request and response data.", "risk_and_exploitability": "The CVSS score of 6.9 indicates moderate severity. The EPSS score of less than 1% suggests that the likelihood of exploitation in the wild is currently very low, and the vulnerability is not listed in the CISA KEV catalog. Nevertheless, an attacker who can reach the router port can fully authenticate to upstream services and manipulate or exfiltrate data. Exposure requires network connectivity to the router component; no additional credentials are needed beyond the static key. The risk is therefore confined to systems where the router feature is enabled and externally accessible."}}}}, "created": "2026-03-10T14:07:15.897234+00:00", "updated": "2026-04-16T04:00:09.468167+00:00", "vendors": ["keygraphhq", "keygraphhq$PRODUCT$shannon"]}