{"schema_version":1,"title":"wasmtime (PyPI) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 5 vulnerabilities in wasmtime (PyPI): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-34983, was published on 9 April 2026.","url":"https://junglewise.ai/threats/technologies/pypi-wasmtime","json_url":"https://junglewise.ai/threats/technologies/pypi-wasmtime.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/pypi-wasmtime","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":5,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":1},"latest":[{"cve":"CVE-2026-34983","cvss":4,"epss":0.0012,"slug":"cve-2026-34983-bytecode-alliance-wasmtime-use-after-free-in-linker-cloning","title":"Bytecode Alliance Wasmtime use-after-free in Linker cloning","severity":"medium","exploited":false,"published_at":"2026-04-09T20:23:44+00:00","url":"https://junglewise.ai/threats/cve-2026-34983-bytecode-alliance-wasmtime-use-after-free-in-linker-cloning"},{"cve":"CVE-2024-47813","cvss":3.1,"epss":0.0015,"slug":"cve-2024-47813-bytecode-alliance-wasmtime-race-condition-in-internal-type","title":"Bytecode Alliance Wasmtime race condition in internal type registry","severity":"low","exploited":false,"published_at":"2024-10-09T19:14:35+00:00","url":"https://junglewise.ai/threats/cve-2024-47813-bytecode-alliance-wasmtime-race-condition-in-internal-type"},{"cve":"CVE-2024-30266","cvss":3.1,"epss":0.0032,"slug":"cve-2024-30266-pysec-2024-327-wasmtime-is-a-runtime-for-webassembly-the-19-0-0","title":"RUSTSEC-2024-0441 - Panic when using a dropped extenref-typed element segment","severity":"low","exploited":false,"published_at":"2024-04-02T12:00:00+00:00","url":"https://junglewise.ai/threats/cve-2024-30266-pysec-2024-327-wasmtime-is-a-runtime-for-webassembly-the-19-0-0"},{"cve":"CVE-2021-39216","cvss":3.1,"epss":0.0031,"slug":"cve-2021-39216-out-of-bounds-read-write-and-invalid-free-with-externref-s-and-gc","title":"RUSTSEC-2021-0110 - Multiple Vulnerabilities in Wasmtime","severity":"low","exploited":false,"published_at":"2021-09-17T12:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-39216-out-of-bounds-read-write-and-invalid-free-with-externref-s-and-gc"},{"cve":"CVE-2021-32629","cvss":3.1,"epss":0.0046,"slug":"cve-2021-32629-memory-access-due-to-code-generation-flaw-in-cranelift-module","title":"RUSTSEC-2021-0067 - Memory access due to code generation flaw in Cranelift module","severity":"low","exploited":false,"published_at":"2021-05-21T12:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-32629-memory-access-due-to-code-generation-flaw-in-cranelift-module"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"tensorflow (PyPI)","slug":"pypi-tensorflow","vulnerabilities":428,"url":"https://junglewise.ai/threats/technologies/pypi-tensorflow"},{"name":"tensorflow-cpu (PyPI)","slug":"tensorflow-cpu","vulnerabilities":424,"url":"https://junglewise.ai/threats/technologies/tensorflow-cpu"},{"name":"tensorflow-gpu (PyPI)","slug":"tensorflow-gpu","vulnerabilities":421,"url":"https://junglewise.ai/threats/technologies/tensorflow-gpu"},{"name":"open-webui (PyPI)","slug":"open-webui","vulnerabilities":177,"url":"https://junglewise.ai/threats/technologies/open-webui"},{"name":"Django (PyPI)","slug":"django","vulnerabilities":172,"url":"https://junglewise.ai/threats/technologies/django"},{"name":"apache-airflow (PyPI)","slug":"apache-airflow","vulnerabilities":152,"url":"https://junglewise.ai/threats/technologies/apache-airflow"},{"name":"plone (PyPI)","slug":"pypi-plone","vulnerabilities":101,"url":"https://junglewise.ai/threats/technologies/pypi-plone"},{"name":"praisonai (PyPI)","slug":"pypi-praisonai","vulnerabilities":86,"url":"https://junglewise.ai/threats/technologies/pypi-praisonai"},{"name":"exiv2 (PyPI)","slug":"exiv2","vulnerabilities":85,"url":"https://junglewise.ai/threats/technologies/exiv2"},{"name":"nltk (PyPI)","slug":"nltk","vulnerabilities":83,"url":"https://junglewise.ai/threats/technologies/nltk"},{"name":"mlflow (PyPI)","slug":"mlflow","vulnerabilities":82,"url":"https://junglewise.ai/threats/technologies/mlflow"},{"name":"pillow (PyPI)","slug":"pillow","vulnerabilities":79,"url":"https://junglewise.ai/threats/technologies/pillow"}],"technology":{"hub":true,"name":"wasmtime (PyPI)","slug":"pypi-wasmtime","vendor":{"name":"PyPI","slug":"pypi","url":"https://junglewise.ai/threats/vendors/pypi"},"aliases":[],"homepage":"https://wasmtime.dev","repo_url":"https://github.com/bytecodealliance/wasmtime","description":"Runtime for executing WebAssembly modules with an embedded interpreter.","url":"https://junglewise.ai/threats/technologies/pypi-wasmtime"},"most_severe":[{"cve":"CVE-2026-34983","cvss":4,"epss":0.0012,"slug":"cve-2026-34983-bytecode-alliance-wasmtime-use-after-free-in-linker-cloning","title":"Bytecode Alliance Wasmtime use-after-free in Linker cloning","severity":"medium","exploited":false,"published_at":"2026-04-09T20:23:44+00:00","url":"https://junglewise.ai/threats/cve-2026-34983-bytecode-alliance-wasmtime-use-after-free-in-linker-cloning"},{"cve":"CVE-2021-32629","cvss":3.1,"epss":0.0046,"slug":"cve-2021-32629-memory-access-due-to-code-generation-flaw-in-cranelift-module","title":"RUSTSEC-2021-0067 - Memory access due to code generation flaw in Cranelift module","severity":"low","exploited":false,"published_at":"2021-05-21T12:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-32629-memory-access-due-to-code-generation-flaw-in-cranelift-module"},{"cve":"CVE-2024-30266","cvss":3.1,"epss":0.0032,"slug":"cve-2024-30266-pysec-2024-327-wasmtime-is-a-runtime-for-webassembly-the-19-0-0","title":"RUSTSEC-2024-0441 - Panic when using a dropped extenref-typed element segment","severity":"low","exploited":false,"published_at":"2024-04-02T12:00:00+00:00","url":"https://junglewise.ai/threats/cve-2024-30266-pysec-2024-327-wasmtime-is-a-runtime-for-webassembly-the-19-0-0"},{"cve":"CVE-2021-39216","cvss":3.1,"epss":0.0031,"slug":"cve-2021-39216-out-of-bounds-read-write-and-invalid-free-with-externref-s-and-gc","title":"RUSTSEC-2021-0110 - Multiple Vulnerabilities in Wasmtime","severity":"low","exploited":false,"published_at":"2021-09-17T12:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-39216-out-of-bounds-read-write-and-invalid-free-with-externref-s-and-gc"},{"cve":"CVE-2024-47813","cvss":3.1,"epss":0.0015,"slug":"cve-2024-47813-bytecode-alliance-wasmtime-race-condition-in-internal-type","title":"Bytecode Alliance Wasmtime race condition in internal type registry","severity":"low","exploited":false,"published_at":"2024-10-09T19:14:35+00:00","url":"https://junglewise.ai/threats/cve-2024-47813-bytecode-alliance-wasmtime-race-condition-in-internal-type"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}