{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-114619", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-21T20:34:25.600Z", "datePublished": "2026-10-22T21:31:02.929Z", "dateUpdated": "2026-10-22T21:31:02.929Z"}, "containers": {"cna": {"title": "Authlib: OpenID implicit grant checks raw scope instead of allowed scope before issuing ID tokens", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/authlib/authlib/security/advisories/GHSA-q686-2qmg-hqc7", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/authlib/authlib/security/advisories/GHSA-q686-2qmg-hqc7"}, {"name": "https://github.com/authlib/authlib/pull/945", "tags": ["x_refsource_MISC"], "url": "https://github.com/authlib/authlib/pull/945"}, {"name": "https://github.com/authlib/authlib/commit/e3bd41cb29dcfee434453b135ffb487884baeedf", "tags": ["x_refsource_MISC"], "url": "https://github.com/authlib/authlib/commit/e3bd41cb29dcfee434453b135ffb487884baeedf"}, {"name": "https://github.com/authlib/authlib/releases/tag/v1.9.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/authlib/authlib/releases/tag/v1.9.0"}], "affected": [{"vendor": "authlib", "product": "authlib", "versions": [{"version": "< 1.9.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-22T21:31:02.929Z"}, "descriptions": [{"lang": "en", "value": "Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, OpenIDImplicitGrant.validate_authorization_request() checks the client-controlled raw request.payload.scope for openid after the parent grant has filtered allowed scopes into request.scope. A registered client permitted an ID token response type but not the openid scope can add openid to the request, obtain user consent, and receive a signed ID token containing the user's subject and allowed profile claims. Authorization code flow and deployments that allow openid for every client permitted an ID token response are not affected. In authlib/oidc/core/grants/implicit.py, OpenIDImplicitGrant.validate_authorization_request() checks request.payload.scope instead of the filtered request.scope. This issue is fixed in version 1.9.0."}], "source": {"advisory": "GHSA-q686-2qmg-hqc7", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "authlib", "vendor": "authlib", "versions": [{"status": "affected", "version": "< 1.9.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, OpenIDImplicitGrant.validate_authorization_request() checks the client-controlled raw request.payload.scope for openid after the parent grant has filtered allowed scopes into request.scope. A registered client permitted an ID token response type but not the openid scope can add openid to the request, obtain user consent, and receive a signed ID token containing the user's subject and allowed profile claims. Authorization code flow and deployments that allow openid for every client permitted an ID token response are not affected. In authlib/oidc/core/grants/implicit.py, OpenIDImplicitGrant.validate_authorization_request() checks request.payload.scope instead of the filtered request.scope. This issue is fixed in version 1.9.0."}], "id": "CVE-2026-114619", "lastModified": "2026-10-23T19:34:14.170", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-22T22:18:04.930", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/authlib/authlib/commit/e3bd41cb29dcfee434453b135ffb487884baeedf"}, {"source": "security-advisories@github.com", "url": "https://github.com/authlib/authlib/pull/945"}, {"source": "security-advisories@github.com", "url": "https://github.com/authlib/authlib/releases/tag/v1.9.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/authlib/authlib/security/advisories/GHSA-q686-2qmg-hqc7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{"bugzilla": {"description": "authlib: authlib: authorization bypass via improper scope check in OpenID implicit grant", "id": "2559396", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559396"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-807", "details": ["A flaw was found in Authlib. This vulnerability allows an authenticated client to bypass authorization scope restrictions and obtain an unauthorized OpenID Connect (OIDC) identity token, leading to information disclosure. During an implicit grant authorization request, the application evaluates the raw client-provided scope parameter rather than the filtered list of permitted scopes. Consequently, a client not authorized for the 'openid' scope can request user consent and receive a signed ID token containing the user's identity and profile claims."], "name": "CVE-2026-114619", "package_state": [{"cpe": "cpe:/a:redhat:exploit_intelligence:0", "fix_state": "Out of support scope", "package_name": "exploit-intelligence/vulnerability-analysis-rhel9", "product_name": "Exploit Intelligence"}, {"cpe": "cpe:/a:redhat:lightspeed_core", "fix_state": "Fix deferred", "package_name": "lightspeed-core/lightspeed-stack-rhel9", "product_name": "Lightspeed Core"}, {"cpe": "cpe:/a:redhat:migration_toolkit_applications:8", "fix_state": "Fix deferred", "package_name": "mta/mta-solution-server-rhel9", "product_name": "Migration Toolkit for Applications 8"}, {"cpe": "cpe:/a:redhat:openshift_lightspeed:1", "fix_state": "Fix deferred", "package_name": "openshift-lightspeed/lightspeed-agentic-sandbox-rhel9", "product_name": "OpenShift Lightspeed"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Fix deferred", "package_name": "ansible-automation-platform-26/lightspeed-chatbot-rhel9", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform:2", "fix_state": "Fix deferred", "package_name": "ansible-automation-platform-27/lightspeed-chatbot-rhel9", "product_name": "Red Hat Ansible Automation Platform 2"}, {"cpe": "cpe:/a:redhat:rhel_cla:1", "fix_state": "Fix deferred", "package_name": "rhel-cla/rhel-knowledge-bridge-rhel10", "product_name": "Red Hat Enterprise Linux command line assistant"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Fix deferred", "package_name": "container-native-virtualization/ocp-virt-validation-checkup-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Out of support scope", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Out of support scope", "package_name": "quay/quay-rhel9", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "package_name": "satellite/foreman-mcp-server-rhel9", "product_name": "Red Hat Satellite 6"}], "public_date": "2026-10-22T21:31:02Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-114619\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-114619\nhttps://github.com/authlib/authlib/commit/e3bd41cb29dcfee434453b135ffb487884baeedf\nhttps://github.com/authlib/authlib/pull/945\nhttps://github.com/authlib/authlib/releases/tag/v1.9.0\nhttps://github.com/authlib/authlib/security/advisories/GHSA-q686-2qmg-hqc7"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.9.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "authlib", "source": "cna", "vendor": "authlib"}, "product": "authlib", "vendor": "authlib"}], "created": "2026-10-23T03:15:16.645682+00:00", "updated": "2026-10-23T13:30:07.787778+00:00", "vendors": ["authlib", "authlib$PRODUCT$authlib"], "weaknesses": ["CWE-807", "CWE-863"]}