{"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": "2026-08-19T19:26:46.137Z"}, "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": "3.9.0", "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 3.0.44", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-76647"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-08-19T19:26:46.137Z"}}}}

{}

{"affected": [{"affectedData": [{"product": "JSON-RPC API", "vendor": "Leantime", "versions": [{"lessThanOrEqual": "3.9.0", "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": "2026-08-19T20:17:24.013", "metrics": {}, "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"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,3.9.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "JSON-RPC API", "source": "cna", "vendor": "Leantime"}, "product": "json-rpc_api", "vendor": "leantime"}], "created": "2026-08-19T23:45:05.261145+00:00", "updated": "2026-08-20T09:08:38.367741+00:00", "vendors": ["leantime", "leantime$PRODUCT$json-rpc_api"], "weaknesses": ["CWE-284"]}