{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76647", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-08-19T15:24:24.418Z", "datePublished": "2026-08-19T19:26:46.137Z", "dateUpdated": "2026-08-27T15:49:51.556Z"}, "containers": {"cna": {"title": "Leantime JSON-RPC API contains a missing authorization vulnerability", "descriptions": [{"lang": "en", "value": "Leantime JSON-RPC API through version 3.9.0 contains a missing authorization vulnerability in the JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php. The dispatcher does not enforce authorization before invoking service-layer methods, allowing an authenticated user to call methods or act on resources outside their intended permissions. For example, the editOwn method accepts a user-supplied user ID without verifying that it belongs to the caller, allowing an attacker to modify another user's account and set a new password, resulting in account takeover. This vulnerability is distinct from CVE-2026-59712 and CVE-2026-15509 because the root cause is the lack of centralized authorization enforcement in the JSON-RPC dispatcher rather than the behavior of an individual exposed method."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Leantime", "product": "JSON-RPC API", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "3.8.0", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-862 Missing Authorization"}]}, {"descriptions": [{"lang": "en", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"lang": "en", "description": "CWE-639 Authorization Bypass Through User-Controlled Key"}]}], "references": [{"url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover"}, {"url": "https://vokecyber.com/blog/leantime-jsonrpc-editown-account-takeover"}, {"url": "https://leantime.io/unlocking-leantimes-power-a-guide-to-the-json-rpc-api/"}], "x_generator": {"engine": "VINCE 3.0.45", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-76647"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-08-27T15:35:09.876Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-862", "lang": "en", "description": "CWE-862 Missing Authorization"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-200", "lang": "en", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-639", "lang": "en", "description": "CWE-639 Authorization Bypass Through User-Controlled Key"}]}], "references": [{"url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover", "tags": ["exploit"]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-27T15:49:45.883985Z", "id": "CVE-2026-76647", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"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": "2026-08-27T15:49:51.556Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-76647", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-27T15:49:45.883985Z"}}}], "references": [{"url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover", "tags": ["exploit"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862 Missing Authorization"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-639", "description": "CWE-639 Authorization Bypass Through User-Controlled Key"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-27T15:49:32.945Z"}}], "cna": {"title": "Leantime JSON-RPC API contains a missing authorization vulnerability", "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Leantime", "product": "JSON-RPC API", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "3.8.0"}]}], "references": [{"url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover"}, {"url": "https://vokecyber.com/blog/leantime-jsonrpc-editown-account-takeover"}, {"url": "https://leantime.io/unlocking-leantimes-power-a-guide-to-the-json-rpc-api/"}], "x_generator": {"env": "prod", "engine": "VINCE 3.0.45", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-76647"}, "descriptions": [{"lang": "en", "value": "Leantime JSON-RPC API through version 3.9.0 contains a missing authorization vulnerability in the JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php. The dispatcher does not enforce authorization before invoking service-layer methods, allowing an authenticated user to call methods or act on resources outside their intended permissions. For example, the editOwn method accepts a user-supplied user ID without verifying that it belongs to the caller, allowing an attacker to modify another user's account and set a new password, resulting in account takeover. This vulnerability is distinct from CVE-2026-59712 and CVE-2026-15509 because the root cause is the lack of centralized authorization enforcement in the JSON-RPC dispatcher rather than the behavior of an individual exposed method."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-862 Missing Authorization"}]}, {"descriptions": [{"lang": "en", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"lang": "en", "description": "CWE-639 Authorization Bypass Through User-Controlled Key"}]}], "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-08-27T15:35:09.876Z"}}}, "cveMetadata": {"cveId": "CVE-2026-76647", "state": "PUBLISHED", "dateUpdated": "2026-08-27T15:49:51.556Z", "dateReserved": "2026-08-19T15:24:24.418Z", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "datePublished": "2026-08-19T19:26:46.137Z", "assignerShortName": "certcc"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "JSON-RPC API", "vendor": "Leantime", "versions": [{"lessThanOrEqual": "3.8.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Leantime JSON-RPC API through version 3.9.0 contains a missing authorization vulnerability in the JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php. The dispatcher does not enforce authorization before invoking service-layer methods, allowing an authenticated user to call methods or act on resources outside their intended permissions. For example, the editOwn method accepts a user-supplied user ID without verifying that it belongs to the caller, allowing an attacker to modify another user's account and set a new password, resulting in account takeover. This vulnerability is distinct from CVE-2026-59712 and CVE-2026-15509 because the root cause is the lack of centralized authorization enforcement in the JSON-RPC dispatcher rather than the behavior of an individual exposed method."}], "id": "CVE-2026-76647", "lastModified": "2026-09-08T14:07:24.140", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76647", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-27T15:49:45.883985Z", "version": "2.0.3"}}]}, "published": "2026-08-19T20:17:24.013", "references": [{"source": "cret@cert.org", "url": "https://leantime.io/unlocking-leantimes-power-a-guide-to-the-json-rpc-api/"}, {"source": "cret@cert.org", "url": "https://vokecyber.com/blog/leantime-jsonrpc-editown-account-takeover"}, {"source": "cret@cert.org", "url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://vokecyber.com/research/leantime-jsonrpc-editown-account-takeover"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-639"}, {"lang": "en", "value": "CWE-862"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}