CVE-2026-44681

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44681", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-07T16:20:08.660Z", "datePublished": "2026-05-27T19:20:44.122Z", "dateUpdated": "2026-06-02T16:56:48.017Z"}, "containers": {"cna": {"title": "Authlib: Open Redirect in Authlib OIDC Implicit/Hybrid Authorization", "problemTypes": [{"descriptions": [{"cweId": "CWE-601", "lang": "en", "description": "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2"}], "affected": [{"vendor": "authlib", "product": "authlib", "versions": [{"version": "< 1.6.12", "status": "affected"}, {"version": ">= 1.7.0, < 1.7.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-27T19:20:44.122Z"}, "descriptions": [{"lang": "en", "value": "Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. This vulnerability is fixed in 1.6.12 and 1.7.1."}], "source": {"advisory": "GHSA-r95x-qfjj-fjj2", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-02T16:56:23.887057Z", "id": "CVE-2026-44681", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2026-06-02T16:56:48.017Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-44681", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-02T16:56:23.887057Z"}}}], "references": [{"url": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-02T16:56:44.655Z"}}], "cna": {"title": "Authlib: Open Redirect in Authlib OIDC Implicit/Hybrid Authorization", "source": {"advisory": "GHSA-r95x-qfjj-fjj2", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "authlib", "product": "authlib", "versions": [{"status": "affected", "version": "< 1.6.12"}, {"status": "affected", "version": ">= 1.7.0, < 1.7.1"}]}], "references": [{"url": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2", "name": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. This vulnerability is fixed in 1.6.12 and 1.7.1."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-601", "description": "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-27T19:20:44.122Z"}}}, "cveMetadata": {"cveId": "CVE-2026-44681", "state": "PUBLISHED", "dateUpdated": "2026-06-02T16:56:48.017Z", "dateReserved": "2026-05-07T16:20:08.660Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-05-27T19:20:44.122Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "authlib", "vendor": "authlib", "versions": [{"status": "affected", "version": "< 1.6.12"}, {"status": "affected", "version": ">= 1.7.0, < 1.7.1"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:authlib:authlib:*:*:*:*:*:*:*:*", "matchCriteriaId": "98F6DEEB-E0ED-4E52-BADD-96D08213E1A0", "versionEndExcluding": "1.6.12", "vulnerable": true}, {"criteria": "cpe:2.3:a:authlib:authlib:1.7.0:*:*:*:*:*:*:*", "matchCriteriaId": "23EF713E-4717-41F6-A5C2-26365D1A763A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. This vulnerability is fixed in 1.6.12 and 1.7.1."}], "id": "CVE-2026-44681", "lastModified": "2026-06-17T10:51:14.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44681", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-02T16:56:23.887057Z", "version": "2.0.3"}}]}, "published": "2026-05-27T20:16:37.463", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}, {"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.6.12)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.7.0,1.7.1)"}}], "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": "2026-05-27T21:00:14.893821+00:00", "updated": "2026-05-28T03:00:05.034276+00:00", "vendors": ["authlib", "authlib$PRODUCT$authlib"]}