CVE-2026-7210
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Niewystarczająca entropia w `xml.parsers.expat` umożliwia atak hash flooding przez złośliwy XML.
CVSS
7.5
EPSS
1.4%
Exploit
none
Vendor
python
Opis źródłowy (NVD)
`xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding.\r\n\r\nFully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch.
brak
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 7.5 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 1.4% |
| Opublikowano (NVD) | 2026-05-11 18:16:42 UTC |
| Ostatnia modyfikacja (NVD) | 2026-10-02 01:16:44 UTC |
Referencje
- https://github.com/python/cpython/commit/24b8f12544468e4cedf5bfbe25442fcd495391e4 ([email protected]) [Patch]
- https://github.com/python/cpython/commit/3573b3b1ecbd99030a0b18658e1bfece771b2566 ([email protected]) [Patch]
- https://github.com/python/cpython/commit/cbaecf9f16da611a646d507c1cbca265c588fc56 ([email protected])
- https://github.com/python/cpython/commit/e37df2a6a71d6538698e2d3188a7c345b827640b ([email protected])
- https://github.com/python/cpython/commit/ea70712d1a8508e14e9677d44f838dab04dc0286 ([email protected])
- https://github.com/python/cpython/commit/eeea765cb9d8f1fc3d8918b272ac3c477983f27a ([email protected]) [Patch]
- https://github.com/python/cpython/commit/fc9b11ff49cbc82e6f917d07a61517a2b5f3145f ([email protected]) [Patch]
- https://github.com/python/cpython/issues/149018 ([email protected]) [Issue Tracking]
- https://github.com/python/cpython/pull/149023 ([email protected]) [Issue Tracking, Patch]
- https://mail.python.org/archives/list/[email protected]/thread/PNY5OMBDPM2FRUZTWFFPJ6LISWKV627K/ ([email protected]) [Mailing List, Third Party Advisory]
- http://www.openwall.com/lists/oss-security/2026/05/11/13 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Third Party Advisory]
- http://www.openwall.com/lists/oss-security/2026/05/11/8 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Third Party Advisory]