{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-87802", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-09T10:11:18.664Z", "datePublished": "2026-09-14T10:22:29.574Z", "dateUpdated": "2026-09-14T19:39:26.483Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-14T10:22:29.574Z"}, "title": "Apache Syncope: SRA OAuth2 JWT signature verification bypass", "problemTypes": [{"descriptions": [{"description": "CWE-347 Improper verification of cryptographic signature", "lang": "en", "cweId": "CWE-347", "type": "CWE"}]}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Syncope", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.syncope:syncope-sra", "packageURL": "pkg:maven/org.apache.syncope/syncope-sra", "versions": [{"status": "affected", "version": "3.0.0-M0", "lessThanOrEqual": "3.0.16", "versionType": "semver"}, {"status": "affected", "version": "4.0.0-M0", "lessThanOrEqual": "4.0.7", "versionType": "semver"}, {"status": "affected", "version": "4.1.0-M0", "lessThanOrEqual": "4.1.2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Improper verification of cryptographic signature vulnerability in Apache Syncope.\n\n\n\nWhen SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Improper verification of cryptographic signature vulnerability in Apache Syncope.</p><p>When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.<br><br>This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.</p><p>Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.</p>"}]}], "references": [{"url": "https://lists.apache.org/thread/gx83cootj00kn8hqd73x1bp8441np33d", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "low"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "MopMonk AI", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/14/25"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-14T18:09:26.256Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-09-14T19:39:06.982847Z", "id": "CVE-2026-87802", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-14T19:39:26.483Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-87802", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-09T10:11:18.664Z", "datePublished": "2026-09-14T10:22:29.574Z", "dateUpdated": "2026-09-14T19:39:26.483Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-14T10:22:29.574Z"}, "title": "Apache Syncope: SRA OAuth2 JWT signature verification bypass", "problemTypes": [{"descriptions": [{"description": "CWE-347 Improper verification of cryptographic signature", "lang": "en", "cweId": "CWE-347", "type": "CWE"}]}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Syncope", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.syncope:syncope-sra", "packageURL": "pkg:maven/org.apache.syncope/syncope-sra", "versions": [{"status": "affected", "version": "3.0.0-M0", "lessThanOrEqual": "3.0.16", "versionType": "semver"}, {"status": "affected", "version": "4.0.0-M0", "lessThanOrEqual": "4.0.7", "versionType": "semver"}, {"status": "affected", "version": "4.1.0-M0", "lessThanOrEqual": "4.1.2", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Improper verification of cryptographic signature vulnerability in Apache Syncope.\n\n\n\nWhen SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Improper verification of cryptographic signature vulnerability in Apache Syncope.</p><p>When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.<br><br>This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.</p><p>Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.</p>"}]}], "references": [{"url": "https://lists.apache.org/thread/gx83cootj00kn8hqd73x1bp8441np33d", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "low"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "MopMonk AI", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/14/25"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-14T18:09:26.256Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-87802", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-14T19:39:06.982847Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-14T19:39:22.300Z"}}]}}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.syncope:syncope-sra", "packageURL": "pkg:maven/org.apache.syncope/syncope-sra", "product": "Apache Syncope", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "3.0.16", "status": "affected", "version": "3.0.0-M0", "versionType": "semver"}, {"lessThanOrEqual": "4.0.7", "status": "affected", "version": "4.0.0-M0", "versionType": "semver"}, {"lessThanOrEqual": "4.1.2", "status": "affected", "version": "4.1.0-M0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper verification of cryptographic signature vulnerability in Apache Syncope.\n\n\n\nWhen SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA.\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 through 4.0.7, from 4.1.0-M0 through 4.1.2.\n\n\n\nUsers are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue."}], "id": "CVE-2026-87802", "lastModified": "2026-09-14T20:58:48.430", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-87802", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-14T19:39:06.982847Z", "version": "2.0.3"}}]}, "published": "2026-09-14T11:17:05.620", "references": [{"source": "[email protected]", "url": "https://lists.apache.org/thread/gx83cootj00kn8hqd73x1bp8441np33d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/09/14/25"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "[email protected]", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.0.0-M0,3.0.16]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0-M0,4.0.7]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.1.0-M0,4.1.2]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache Syncope", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "syncope", "vendor": "apache"}], "created": "2026-09-14T12:45:06.300292+00:00", "updated": "2026-09-14T20:45:09.003058+00:00", "vendors": ["apache", "apache$PRODUCT$syncope"]}