{"id":"CVE-2026-102734","revision":null,"records":[{"revision":"b79c68c3fd184af9b3e6102ab43470c4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102734","aliases":[],"title":"asteval sandbox escape: arbitrary native memory read/write via numpy ctypes in default asteval Interpreter","description":"asteval is a Python expression evaluator designed for restricted execution. Prior to 1.0.9, in asteval/astutils.py, the default Interpreter with numpy enabled exposes a ctypes type and permits from_address memory access. safe_getattr blocks the ctypes module but not reachable ctypes type objects, while attribute assignments use unfiltered setattr instead of safe_setattr. An attacker-controlled expression can derive an address with id, read memory through from_address, and write through an attribute assignment. The expression can read or corrupt arbitrary process memory, escape the intended sandbox, execute code, disclose secrets, or crash the host process. This issue is fixed in version 1.0.9.","state":0,"publishedAt":"2026-10-13T15:29:49.209+00:00","modifiedAt":"2026-10-13T20:22:29.684+00:00","affected":[{"ecosystem":"Vendor product","name":"asteval","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"lmfit\",\n                    \"product\": \"asteval\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.0.9\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5,"severity":"MEDIUM"}],"references":["https://github.com/lmfit/asteval/security/advisories/GHSA-9w56-46f6-3qhx","https://github.com/lmfit/asteval/pull/153","https://github.com/lmfit/asteval/commit/a3e56e7f8ed567a4817684d94213b290359077b4","https://github.com/lmfit/asteval/releases/tag/1.0.9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102734","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102734","identifiers":["CVE-2026-102734"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T07:03:58.7434242+00:00","complete":true,"records":1773,"lastAttemptAt":"2026-11-10T07:03:58.7434242+00:00","lastSuccessAt":"2026-11-10T07:03:59.0484779+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:03:59.048478+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-8859cf40d4337e24bd2f258cc7778fbad01bb24c79d057aaf34cf1dfc6f8917d-91b398b0ac92bbc624d45e98f488e711d54c8f459586081e22df0a998ae56dce","complete":true,"records":421905,"lastAttemptAt":"2026-11-10T07:02:14.6737831+00:00","lastSuccessAt":"2026-11-10T07:02:14.6206389+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:02:14.6737831+00:00","snapshotPublishedAt":"2026-11-10T06:31:46+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-2e6a476534094233b48f2f0b6da5cf35","complete":true,"records":13689,"lastAttemptAt":"2026-11-10T07:04:24.75366+00:00","lastSuccessAt":"2026-11-10T06:05:35.03+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:05:35.03+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13742,"expectedIdentifiers":13742,"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":"2026-11-10T07:03:58.7434242+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T07:03:58.7434242+00:00","lastSuccessAt":"2026-11-10T07:03:59.049149+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:03:59.049149+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-d71a61bd41e147f4a9126c2a3d45b565","complete":false,"records":13695,"lastAttemptAt":"2026-11-10T07:04:24.141829+00:00","lastSuccessAt":"2026-11-10T07:04:24.138+00:00","error":"100 identifier lookups failed; latest failures include request timeout. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-10T07:04:24.138+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13642,"expectedIdentifiers":13742,"failedIdentifiers":100},{"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-cdffb4589856378aa42e8d1bd4a6c74e27a180d8160bf764c44715ef760f0a62","complete":true,"records":9932,"lastAttemptAt":"2026-11-10T07:03:58.6990249+00:00","lastSuccessAt":"2026-11-10T00:04:19.8260565+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:03:58.6990249+00:00","snapshotPublishedAt":"2026-11-09T23:48:01+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-26503967ae4379db8f374089589d6e03fb15bd31f820c9e992aaf93840c2236c","complete":true,"records":1971,"lastAttemptAt":"2026-11-10T07:02:14.8606265+00:00","lastSuccessAt":"2026-11-09T21:02:20.472473+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:02:14.8606265+00:00","snapshotPublishedAt":"2026-11-09T20:18:18+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-14f555fdbdce5e9103ab1251a692b612ea1fcd0b3d538af6015a071f4b299249","complete":true,"records":3065,"lastAttemptAt":"2026-11-10T07:03:58.7132407+00:00","lastSuccessAt":"2026-11-10T06:04:36.7449268+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:03:58.7132407+00:00","snapshotPublishedAt":"2026-11-10T05:33:02+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-d4d3fe345e4cd6b7d1a871cd960b91062a9e5364cd12e8b83dd56ff53c80f866","complete":true,"records":231596,"lastAttemptAt":"2026-11-10T07:03:58.5742559+00:00","lastSuccessAt":"2026-11-10T07:03:57.1903356+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:03:58.5742559+00:00","snapshotPublishedAt":"2026-11-10T06:33:16+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}