CVE-2022-29217

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With JWT, an attacker submitting the JWT token can choose the used signing algorithm. The PyJWT library requires that the application chooses what algorithms are supported. The application can specify `jwt.algorithms.get_default_algorithms()` to get support for all algorithms, or specify a single algorithm. The issue is not that big as `algorithms=jwt.algorithms.get_default_algorithms()` has to be used. Users should upgrade to v2.4.0 to receive a patch for this issue. As a workaround, always be explicit with the algorithms that are accepted and expected when decoding."}, {"lang": "es", "value": "PyJWT es una implementaci\u00f3n en Python del RFC 7519. PyJWT soporta m\u00faltiples algoritmos de firma JWT diferentes. Con JWT, un atacante que env\u00eda el token JWT puede elegir el algoritmo de firma usado. La biblioteca PyJWT requiere que la aplicaci\u00f3n elija qu\u00e9 algoritmos son soportados. La aplicaci\u00f3n puede especificar \"jwt.algorithms.get_default_algorithms()\" para conseguir soporte para todos los algoritmos, o especificar un \u00fanico algoritmo. El problema no es tan grande ya que debe ser usado \"algorithms=jwt.algorithms.get_default_algorithms()\". Los usuarios deben actualizar a la versi\u00f3n 2.4.0 para recibir un parche para este problema. Como mitigaci\u00f3n, sea siempre expl\u00edcito con los algoritmos que son aceptados y son esperados cuando es decodificado"}], "id": "CVE-2022-29217", "lastModified": "2026-06-17T04:39:50.960", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-29217", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-04-23T15:52:55.610736Z", "version": "2.0.3"}}]}, "published": "2022-05-24T15:15:07.767", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/jpadilla/pyjwt/commit/9c528670c455b8d948aff95ed50e22940d1ad3fc"}, {"source": "security-advisories@github.com", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/jpadilla/pyjwt/releases/tag/2.4.0"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-ffqj-6fqr-9h24"}, {"source": "security-advisories@github.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/"}, {"source": "security-advisories@github.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/jpadilla/pyjwt/commit/9c528670c455b8d948aff95ed50e22940d1ad3fc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/jpadilla/pyjwt/releases/tag/2.4.0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-ffqj-6fqr-9h24"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PK7IQCBVNLYJEFTPHBBPFP72H4WUFNX/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIYEYZRQEP6QTHT3EHH3RGFYJIHIMAO/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.vicarius.io/vsociety/posts/risky-algorithms-algorithm-confusion-in-pyjwt-cve-2022-29217"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-327"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "python-jwt: Key confusion through non-blocklisted public key formats", "id": "2088544", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2088544"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-327", "details": ["PyJWT is a Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the JWT token can choose the used signing algorithm. The PyJWT library requires that the application chooses what algorithms are supported. The application can specify `jwt.algorithms.get_default_algorithms()` to get support for all algorithms, or specify a single algorithm. The issue is not that big as `algorithms=jwt.algorithms.get_default_algorithms()` has to be used. Users should upgrade to v2.4.0 to receive a patch for this issue. As a workaround, always be explicit with the algorithms that are accepted and expected when decoding.", "A vulnerability was found in python-jwt. This issue happens when PyJWT supports multiple different JWT signing algorithms. This flaw allows an attacker submitting the JWT token to choose the used signing algorithm, leading to key confusion through non-blocklisted public key formats."], "name": "CVE-2022-29217", "package_state": [{"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Affected", "package_name": "automation-controller", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Affected", "package_name": "python-pulp-container", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Affected", "package_name": "python-pyjwt", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ceph_storage:4", "fix_state": "Affected", "package_name": "python-adal", "product_name": "Red Hat Ceph Storage 4"}, {"cpe": "cpe:/a:redhat:ceph_storage:4", "fix_state": "Affected", "package_name": "python-jwt", "product_name": "Red Hat Ceph Storage 4"}, {"cpe": "cpe:/a:redhat:ceph_storage:5", "fix_state": "Will not fix", "package_name": "python-adal", "product_name": "Red Hat Ceph Storage 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "python-adal", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "python-jwt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "python-jwt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "fence-agents", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "python-oauthlib", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift_container_storage:4", "fix_state": "Out of support scope", "package_name": "python-adal", "product_name": "Red Hat Openshift Container Storage 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "python-adal", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Out of support scope", "package_name": "python-jwt", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}, {"cpe": "cpe:/a:redhat:openstack:16.1", "fix_state": "Not affected", "package_name": "openstack-mistral", "product_name": "Red Hat OpenStack Platform 16.1"}, {"cpe": "cpe:/a:redhat:openstack:16.1", "fix_state": "Not affected", "package_name": "python-adal", "product_name": "Red Hat OpenStack Platform 16.1"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "openstack-keystone", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "openstack-mistral", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "python-adal", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "python-pulp-container", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Not affected", "package_name": "python-pyjwt", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:storage:3", "fix_state": "Affected", "package_name": "python-jwt", "product_name": "Red Hat Storage 3"}], "public_date": "2022-05-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-29217\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-29217"], "threat_severity": "Moderate"}

{}