{"id":"CVE-2026-63349","revision":null,"records":[{"revision":"e3a5f6ea22094bfda2c90462defcec41","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-63349","aliases":[],"title":"AnyIO run_process/open_process ignores extra_groups and can retain parent supplementary groups","description":"AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. In 4.14.0, AnyIO accepts the POSIX extra_groups argument in anyio.run_process() and anyio.open_process(), but open_process() forwards the group argument to the backend instead of extra_groups. A caller that supplies extra_groups=[] to clear inherited supplementary groups can therefore launch a child that retains the parent process groups, undermining a privilege-dropping boundary. If group is also supplied, the integer group value is passed where an iterable of supplementary groups is expected and the launch can fail with TypeError. This issue affects POSIX applications that rely on AnyIO subprocess helpers to launch less-privileged child processes. This issue is fixed in version 4.14.2.","state":0,"publishedAt":"2026-09-18T17:02:30.273+00:00","modifiedAt":"2026-09-24T21:05:25.977+00:00","affected":[{"ecosystem":"Vendor product","name":"anyio","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"agronholm\",\n                    \"product\": \"anyio\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.14.0, < 4.14.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":7,"severity":"HIGH"}],"references":["https://github.com/agronholm/anyio/security/advisories/GHSA-3w57-8xmc-8v26","https://github.com/agronholm/anyio/pull/1209","https://github.com/agronholm/anyio/commit/eb562e6462ee46b1904e50b02ce00a858cdeb200","https://github.com/agronholm/anyio/releases/tag/4.14.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63349","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-63349","identifiers":["CVE-2026-63349"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-12T11:55:28.1860721+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-12T11:55:28.1860721+00:00","lastSuccessAt":"2026-11-12T11:55:28.4130785+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.4130791+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-64752486c567b55b31fb0d7225f5222bcd0019564ac0ac5f0649e242c7b19299-4a4604796d7c0adea2c1c677026f25a1e039e4a95710b02ad846575329daaa79","complete":true,"records":424651,"lastAttemptAt":"2026-11-12T11:53:33.8199862+00:00","lastSuccessAt":"2026-11-12T11:53:33.7811873+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:53:33.8199862+00:00","snapshotPublishedAt":"2026-11-12T11:27:22+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-0580dcc98aaa46a8935f8ff576f25037","complete":true,"records":13764,"lastAttemptAt":"2026-11-12T11:56:20.2141865+00:00","lastSuccessAt":"2026-11-12T11:56:20.209+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:56:20.209+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13817,"expectedIdentifiers":13817,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-12T11:55:28.1860721+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-12T11:55:28.1860721+00:00","lastSuccessAt":"2026-11-12T11:55:28.4142299+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.4142304+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-ea8d0b9744d8407d9df5932458afeb6a","complete":false,"records":13764,"lastAttemptAt":"2026-11-12T11:55:53.6222651+00:00","lastSuccessAt":"2026-11-12T11:55:53.618+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:53.618+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13313,"expectedIdentifiers":13817,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-12T11:55:28.0344457+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.0344457+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-12T11:53:33.8856695+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:53:33.8856695+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-f46f74c6a30a9b6e4cfb481719c6d35521ebec2d53ebf163223d093ae587eb9d","complete":true,"records":3106,"lastAttemptAt":"2026-11-12T11:55:28.1484531+00:00","lastSuccessAt":"2026-11-12T09:55:31.1176285+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.1484531+00:00","snapshotPublishedAt":"2026-11-12T09:48:13+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-e59fd13399d7070c31f5f25102a6bcd537ccba91d773c8427fcf0d07ea0fe2d5","complete":true,"records":231700,"lastAttemptAt":"2026-11-12T11:55:27.8998515+00:00","lastSuccessAt":"2026-11-12T11:55:26.4268762+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:27.8998515+00:00","snapshotPublishedAt":"2026-11-12T11:33:13+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}