{"schema_version":1,"title":"pywasm3 (PyPI) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 13 vulnerabilities in pywasm3 (PyPI): 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2025-6272, was published on 19 June 2025.","url":"https://junglewise.ai/threats/technologies/pywasm3","json_url":"https://junglewise.ai/threats/technologies/pywasm3.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/pywasm3","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":13,"critical":2,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":0},"latest":[{"cve":"CVE-2025-6272","cvss":4,"epss":0.0023,"slug":"cve-2025-6272-wasm3-and-pywasm3-out-of-bounds-write-in-markslotallocated","title":"wasm3 and pywasm3 out-of-bounds write in MarkSlotAllocated","severity":"medium","exploited":false,"published_at":"2025-06-19T18:31:47+00:00","url":"https://junglewise.ai/threats/cve-2025-6272-wasm3-and-pywasm3-out-of-bounds-write-in-markslotallocated"},{"cve":"CVE-2024-27530","cvss":8.4,"epss":0.0022,"slug":"cve-2024-27530-wasm3-pywasm3-use-after-free-in-foreachmodule","title":"wasm3 pywasm3 use-after-free in ForEachModule","severity":"high","exploited":false,"published_at":"2024-11-09T00:30:42+00:00","url":"https://junglewise.ai/threats/cve-2024-27530-wasm3-pywasm3-use-after-free-in-foreachmodule"},{"cve":"CVE-2024-27529","cvss":8.4,"epss":0.0026,"slug":"cve-2024-27529-wasm3-uncontrolled-memory-allocation-in-read-utf8","title":"Wasm3 uncontrolled memory allocation in Read_utf8","severity":"high","exploited":false,"published_at":"2024-11-09T00:30:42+00:00","url":"https://junglewise.ai/threats/cve-2024-27529-wasm3-uncontrolled-memory-allocation-in-read-utf8"},{"cve":"CVE-2024-27528","cvss":8.4,"epss":0.0024,"slug":"cve-2024-27528-wasm3-pywasm3-out-of-bounds-read-in-m3-exec-h","title":"wasm3 pywasm3 out-of-bounds read in m3_exec.h","severity":"high","exploited":false,"published_at":"2024-11-09T00:30:42+00:00","url":"https://junglewise.ai/threats/cve-2024-27528-wasm3-pywasm3-out-of-bounds-read-in-m3-exec-h"},{"cve":"CVE-2024-27527","cvss":3.1,"epss":0.0046,"slug":"cve-2024-27527-pysec-2024-303-wasm3-139076a-is-vulnerable-to-denial-of-service","title":"PYSEC-2024-303 - wasm3 139076a is vulnerable to Denial of Service (DoS).","severity":"low","exploited":false,"published_at":"2024-11-08T22:15:15.253+00:00","url":"https://junglewise.ai/threats/cve-2024-27527-pysec-2024-303-wasm3-139076a-is-vulnerable-to-denial-of-service"},{"cve":"CVE-2024-34246","cvss":3.1,"epss":0.0052,"slug":"cve-2024-34246-pysec-2024-307-wasm3-v0-5-0-was-discovered-to-contain-an-out-of","title":"PYSEC-2024-307 - wasm3 v0.5.0 was discovered to contain an out-of-bound memory read which leads to segmentation fault via the function \"main\" in wasm3/platfo","severity":"low","exploited":false,"published_at":"2024-05-06T16:15:13.987+00:00","url":"https://junglewise.ai/threats/cve-2024-34246-pysec-2024-307-wasm3-v0-5-0-was-discovered-to-contain-an-out-of"},{"cve":"CVE-2024-34252","cvss":9.8,"epss":0.0063,"slug":"cve-2024-34252-wasm3-pywasm3-global-buffer-overflow-in","title":"wasm3 pywasm3 global buffer overflow in PreserveRegisterIfOccupied","severity":"critical","exploited":false,"published_at":"2024-05-06T15:30:39+00:00","url":"https://junglewise.ai/threats/cve-2024-34252-wasm3-pywasm3-global-buffer-overflow-in"},{"cve":"CVE-2024-34249","cvss":9.8,"epss":0.0071,"slug":"cve-2024-34249-wasm3-heap-buffer-overflow-in-deallocateslot","title":"wasm3 heap buffer overflow in DeallocateSlot","severity":"critical","exploited":false,"published_at":"2024-05-06T15:30:39+00:00","url":"https://junglewise.ai/threats/cve-2024-34249-wasm3-heap-buffer-overflow-in-deallocateslot"},{"cvss":3.1,"slug":"pysec-2022-43155-wasm3-commit-7890a2097569fde845881e0b352d813573e371f9-91ff6a65","title":"PYSEC-2022-43155 - wasm3 commit 7890a2097569fde845881e0b352d813573e371f9 was discovered to contain a segmentation fault via the component op_CallIndirect at /m","severity":"low","exploited":false,"published_at":"2022-12-13T23:15:00+00:00","url":"https://junglewise.ai/threats/pysec-2022-43155-wasm3-commit-7890a2097569fde845881e0b352d813573e371f9-91ff6a65"},{"cve":"CVE-2022-39974","cvss":3.1,"epss":0.0089,"slug":"cve-2022-39974-wasm3-improper-input-validation-vulnerability","title":"PYSEC-2022-43058 - WASM3 v0.5.0 was discovered to contain a segmentation fault via the component op_Select_i32_srs in wasm3/source/m3_exec.h.","severity":"low","exploited":false,"published_at":"2022-09-20T18:15:00+00:00","url":"https://junglewise.ai/threats/cve-2022-39974-wasm3-improper-input-validation-vulnerability"},{"cve":"CVE-2022-34529","cvss":3.1,"epss":0.0029,"slug":"cve-2022-34529-wasm3-segmentation-fault","title":"PYSEC-2022-43057 - WASM3 v0.5.0 was discovered to contain a segmentation fault via the component Compile_Memory_CopyFill.","severity":"low","exploited":false,"published_at":"2022-07-27T14:15:00+00:00","url":"https://junglewise.ai/threats/cve-2022-34529-wasm3-segmentation-fault"},{"cve":"CVE-2022-28990","cvss":3.1,"epss":0.0039,"slug":"cve-2022-28990-buffer-overflow-in-wasm3","title":"PYSEC-2022-43154 - WASM3 v0.5.0 was discovered to contain a heap overflow via the component /wabt/bin/poc.wasm.","severity":"low","exploited":false,"published_at":"2022-05-20T19:15:00+00:00","url":"https://junglewise.ai/threats/cve-2022-28990-buffer-overflow-in-wasm3"},{"cvss":3.1,"slug":"pysec-2022-43153-wasm3-0-5-0-has-a-heap-based-buffer-overflow-in-bdd144ab","title":"PYSEC-2022-43153 - Wasm3 0.5.0 has a heap-based buffer overflow in NewCodePage in m3_code.c (called indirectly from Compile_BranchTable in m3_compile.c).","severity":"low","exploited":false,"published_at":"2022-04-16T16:15:00+00:00","url":"https://junglewise.ai/threats/pysec-2022-43153-wasm3-0-5-0-has-a-heap-based-buffer-overflow-in-bdd144ab"}],"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":"pywasm3 (PyPI)","slug":"pywasm3","vendor":{"name":"PyPI","slug":"pypi","url":"https://junglewise.ai/threats/vendors/pypi"},"aliases":[],"homepage":"https://pypi.org/project/pywasm3/","repo_url":"https://github.com/wasm3/pywasm3","description":"Python bindings for the Wasm3 WebAssembly interpreter.","url":"https://junglewise.ai/threats/technologies/pywasm3"},"most_severe":[{"cve":"CVE-2024-34249","cvss":9.8,"epss":0.0071,"slug":"cve-2024-34249-wasm3-heap-buffer-overflow-in-deallocateslot","title":"wasm3 heap buffer overflow in DeallocateSlot","severity":"critical","exploited":false,"published_at":"2024-05-06T15:30:39+00:00","url":"https://junglewise.ai/threats/cve-2024-34249-wasm3-heap-buffer-overflow-in-deallocateslot"},{"cve":"CVE-2024-34252","cvss":9.8,"epss":0.0063,"slug":"cve-2024-34252-wasm3-pywasm3-global-buffer-overflow-in","title":"wasm3 pywasm3 global buffer overflow in PreserveRegisterIfOccupied","severity":"critical","exploited":false,"published_at":"2024-05-06T15:30:39+00:00","url":"https://junglewise.ai/threats/cve-2024-34252-wasm3-pywasm3-global-buffer-overflow-in"},{"cve":"CVE-2024-27529","cvss":8.4,"epss":0.0026,"slug":"cve-2024-27529-wasm3-uncontrolled-memory-allocation-in-read-utf8","title":"Wasm3 uncontrolled memory allocation in Read_utf8","severity":"high","exploited":false,"published_at":"2024-11-09T00:30:42+00:00","url":"https://junglewise.ai/threats/cve-2024-27529-wasm3-uncontrolled-memory-allocation-in-read-utf8"},{"cve":"CVE-2024-27528","cvss":8.4,"epss":0.0024,"slug":"cve-2024-27528-wasm3-pywasm3-out-of-bounds-read-in-m3-exec-h","title":"wasm3 pywasm3 out-of-bounds read in m3_exec.h","severity":"high","exploited":false,"published_at":"2024-11-09T00:30:42+00:00","url":"https://junglewise.ai/threats/cve-2024-27528-wasm3-pywasm3-out-of-bounds-read-in-m3-exec-h"},{"cve":"CVE-2024-27530","cvss":8.4,"epss":0.0022,"slug":"cve-2024-27530-wasm3-pywasm3-use-after-free-in-foreachmodule","title":"wasm3 pywasm3 use-after-free in ForEachModule","severity":"high","exploited":false,"published_at":"2024-11-09T00:30:42+00:00","url":"https://junglewise.ai/threats/cve-2024-27530-wasm3-pywasm3-use-after-free-in-foreachmodule"},{"cve":"CVE-2025-6272","cvss":4,"epss":0.0023,"slug":"cve-2025-6272-wasm3-and-pywasm3-out-of-bounds-write-in-markslotallocated","title":"wasm3 and pywasm3 out-of-bounds write in MarkSlotAllocated","severity":"medium","exploited":false,"published_at":"2025-06-19T18:31:47+00:00","url":"https://junglewise.ai/threats/cve-2025-6272-wasm3-and-pywasm3-out-of-bounds-write-in-markslotallocated"},{"cve":"CVE-2022-39974","cvss":3.1,"epss":0.0089,"slug":"cve-2022-39974-wasm3-improper-input-validation-vulnerability","title":"PYSEC-2022-43058 - WASM3 v0.5.0 was discovered to contain a segmentation fault via the component op_Select_i32_srs in wasm3/source/m3_exec.h.","severity":"low","exploited":false,"published_at":"2022-09-20T18:15:00+00:00","url":"https://junglewise.ai/threats/cve-2022-39974-wasm3-improper-input-validation-vulnerability"},{"cve":"CVE-2024-34246","cvss":3.1,"epss":0.0052,"slug":"cve-2024-34246-pysec-2024-307-wasm3-v0-5-0-was-discovered-to-contain-an-out-of","title":"PYSEC-2024-307 - wasm3 v0.5.0 was discovered to contain an out-of-bound memory read which leads to segmentation fault via the function \"main\" in wasm3/platfo","severity":"low","exploited":false,"published_at":"2024-05-06T16:15:13.987+00:00","url":"https://junglewise.ai/threats/cve-2024-34246-pysec-2024-307-wasm3-v0-5-0-was-discovered-to-contain-an-out-of"},{"cve":"CVE-2024-27527","cvss":3.1,"epss":0.0046,"slug":"cve-2024-27527-pysec-2024-303-wasm3-139076a-is-vulnerable-to-denial-of-service","title":"PYSEC-2024-303 - wasm3 139076a is vulnerable to Denial of Service (DoS).","severity":"low","exploited":false,"published_at":"2024-11-08T22:15:15.253+00:00","url":"https://junglewise.ai/threats/cve-2024-27527-pysec-2024-303-wasm3-139076a-is-vulnerable-to-denial-of-service"},{"cve":"CVE-2022-28990","cvss":3.1,"epss":0.0039,"slug":"cve-2022-28990-buffer-overflow-in-wasm3","title":"PYSEC-2022-43154 - WASM3 v0.5.0 was discovered to contain a heap overflow via the component /wabt/bin/poc.wasm.","severity":"low","exploited":false,"published_at":"2022-05-20T19:15:00+00:00","url":"https://junglewise.ai/threats/cve-2022-28990-buffer-overflow-in-wasm3"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}