CVE-2021-41803

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*", "matchCriteriaId": "5383A26F-D49C-435F-A81D-15A1A7A74215", "versionEndExcluding": "1.11.9", "versionStartIncluding": "1.8.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:hashicorp:consul:*:*:*:*:enterprise:*:*:*", "matchCriteriaId": "E72F2F36-94E2-40D8-AC42-805F3EB54922", "versionEndExcluding": "1.11.9", "versionStartIncluding": "1.8.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:hashicorp:consul:1.12.4:*:*:*:-:*:*:*", "matchCriteriaId": "4A8E6F38-D34C-4EAE-98C6-6C65ACF35BEA", "vulnerable": true}, {"criteria": "cpe:2.3:a:hashicorp:consul:1.12.4:*:*:*:enterprise:*:*:*", "matchCriteriaId": "6A7455E7-398A-42A5-946A-2497B88394F2", "vulnerable": true}, {"criteria": "cpe:2.3:a:hashicorp:consul:1.13.1:*:*:*:-:*:*:*", "matchCriteriaId": "80BC2226-63EB-41E2-BEB4-4B3A84393E48", "vulnerable": true}, {"criteria": "cpe:2.3:a:hashicorp:consul:1.13.1:*:*:*:enterprise:*:*:*", "matchCriteriaId": "5A31B819-4F49-42A3-9685-CE34440A4850", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "HashiCorp Consul 1.8.1 up to 1.11.8, 1.12.4, and 1.13.1 do not properly validate the node or segment names prior to interpolation and usage in JWT claim assertions with the auto config RPC. Fixed in 1.11.9, 1.12.5, and 1.13.2.\""}, {"lang": "es", "value": "HashiCorp Consul versiones 1.8.1 hasta 1.11.8, 1.12.4 y 1.13.1, no comprueban apropiadamente los nombres de nodos o segmentos antes de la interpolaci\u00f3n y el uso en las aserciones de reclamaci\u00f3n JWT con el RPC de configuraci\u00f3n autom\u00e1tica. Corregido en versiones 1.11.9, 1.12.5 y 1.13.2\"."}], "id": "CVE-2021-41803", "lastModified": "2026-06-17T04:08:56.557", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-41803", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-05-27T15:21:40.244278Z", "version": "2.0.3"}}]}, "published": "2022-09-23T01:15:08.623", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://discuss.hashicorp.com/t/hcsec-2022-19-consul-auto-config-jwt-authorization-missing-input-validation/44627"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.hashicorp.com/blog/category/consul"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://discuss.hashicorp.com/t/hcsec-2022-19-consul-auto-config-jwt-authorization-missing-input-validation/44627"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.hashicorp.com/blog/category/consul"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-862"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "consul: Consul Auto-Config JWT Authorization Missing Input Validation", "id": "2189788", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189788"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "CWE-862", "details": ["HashiCorp Consul 1.8.1 up to 1.11.8, 1.12.4, and 1.13.1 do not properly validate the node or segment names prior to interpolation and usage in JWT claim assertions with the auto config RPC. Fixed in 1.11.9, 1.12.5, and 1.13.2.\"", "A flaw was found in HashiCorp Consul, where it is vulnerable to a denial of service caused by improper input validation for the node or segment names. By sending a specially-crafted request, a remote, authenticated attacker can cause a denial of service."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2021-41803", "package_state": [{"cpe": "cpe:/a:redhat:logging:5", "fix_state": "Not affected", "package_name": "openshift-logging/logging-loki-rhel8", "product_name": "Logging Subsystem for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "package_name": "rhacm2/acm-grafana-rhel8", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Will not fix", "package_name": "openshift4/ose-grafana", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Will not fix", "package_name": "openshift4/topology-aware-lifecycle-manager-rhel8-operator", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Will not fix", "package_name": "odf4/odf-multicluster-rhel9-operator", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "odf4/odr-rhel8-operator", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3:", "fix_state": "Affected", "package_name": "devspaces/traefik-rhel8", "product_name": "Red Hat OpenShift Dev Spaces"}], "public_date": "2022-09-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-41803\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-41803\nhttps://discuss.hashicorp.com/t/hcsec-2022-19-consul-auto-config-jwt-authorization-missing-input-validation/44627"], "threat_severity": "Moderate"}

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