{"id":"GHSA-jf9p-2fv9-2jp2","revision":"1c218e8bb59d4ddd8a2ed49c543c3b9d","records":[{"revision":"1c218e8bb59d4ddd8a2ed49c543c3b9d","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"GHSA-jf9p-2fv9-2jp2","aliases":["CVE-2025-65947","RUSTSEC-2025-0125"],"title":"thread-amount Vulnerable to Resource Exhaustion (Memory and Handle Leaks) on Windows and macOS","description":"Affected versions of this crate contain resource leaks when querying thread counts on Windows and Apple platforms.\n\n### Windows\nThe `thread_amount` function calls `CreateToolhelp32Snapshot` but fails to close the returned `HANDLE` using `CloseHandle`. Repeated calls to this function will cause the handle count of the process to grow indefinitely, eventually leading to system instability or process termination when the handle limit is reached.\n\n### macOS / iOS\nThe `thread_amount` function calls `task_threads` (via Mach kernel APIs) which allocates memory for the thread list. The function fails to deallocate this memory using `vm_deallocate`. Repeated calls will result in a steady memory leak, eventually causing the process to be killed by the OOM (Out of Memory) killer.\n\n### Impact\nLong-running applications (such as servers, daemons, or monitoring tools) that use this crate to periodically check thread counts will eventually crash due to resource exhaustion.\n\n### Resources\n\n- https://github.com/jzeuzs/thread-amount/pull/29","state":0,"publishedAt":"2025-11-21T18:19:40+00:00","modifiedAt":"2025-11-27T08:16:21.759428+00:00","affected":[{"ecosystem":"crates.io","name":"thread-amount","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.2.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/jzeuzs/thread-amount/security/advisories/GHSA-jf9p-2fv9-2jp2","https://nvd.nist.gov/vuln/detail/CVE-2025-65947","https://github.com/jzeuzs/thread-amount/pull/29","https://github.com/jzeuzs/thread-amount/commit/28860d4a38286609cb884c13b5b7941edc2390e5","https://github.com/jzeuzs/thread-amount","https://rustsec.org/advisories/RUSTSEC-2025-0125.html"],"sourceUrl":"https://github.com/advisories/GHSA-jf9p-2fv9-2jp2","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-jf9p-2fv9-2jp2","identifiers":["GHSA-jf9p-2fv9-2jp2","CVE-2025-65947","RUSTSEC-2025-0125"]},"retained":false,"historicalAffected":[]}],"coverage":[]}