جزئیات آسیب‌پذیری
CVE-2026-19445
Python Software Foundation CPython
Use-after-free of a server-side SSLContext when sni_callback switches contexts
CVSS 4.0
9.2بحرانی
شرح رسمی (انگلیسی)
A remote, unauthenticated TLS client can make a server crash or call through a freed pointer if its sni_callback assigns a different context to SSLSocket.context (the documented way to select a certificate per server name) and nothing else keeps the original ssl.SSLContext alive. Typical cases are servers that create an SSLContext per connection or replace it while connections are open; servers that wrap their listening socket with it are not affected. Mitigation: keep a reference to every SSLContext that sets sni_callback for the lifetime of the server. TLS clients are not affected.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 9.2بحرانی | 4.0 | CVEProject cvelistV5 (CNA) (PSF) | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Python Software Foundation | CPython | v < 3.10.22 | CVEProject cvelistV5 (CNA) |
| Python Software Foundation | CPython | 3.11.0 ≤ v < 3.11.17 | CVEProject cvelistV5 (CNA) |
| Python Software Foundation | CPython | 3.12.0 ≤ v < 3.12.15 | CVEProject cvelistV5 (CNA) |
| Python Software Foundation | CPython | 3.13.0 ≤ v < 3.13.16 | CVEProject cvelistV5 (CNA) |
| Python Software Foundation | CPython | 3.14.0 ≤ v < 3.14.8 | CVEProject cvelistV5 (CNA) |
| Python Software Foundation | CPython | 3.15.0a1 ≤ v < 3.15.0rc3 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۱۱- https://github.com/python/cpython/pull/158504 patch
- https://mail.python.org/archives/list/security-announce@python.org/thread/QMQIUQB6WGGC3MI7I3WKQXOYOBDSPPS3/ vendor-advisory
- https://github.com/python/cpython/issues/156293 issue-tracking
- https://github.com/python/cpython/commit/34a53dce8174da2fceb12fe084a4def02a10053d patch
- https://github.com/python/cpython/commit/46133cd57d309652139ada74014aca7665ac552b patch
- https://github.com/python/cpython/commit/63fab143d94cafae71850831acfb52041ba44af7 patch
- https://github.com/python/cpython/commit/cd7e51e7d4563866fbaa1e2521ae69b45daf3698 patch
- https://github.com/python/cpython/commit/d8717ed01717a9641686e6e6f83f0ab8af235e2c patch
- https://github.com/python/cpython/commit/b12968cefe69ca1dcb8606c832ff73ee7dbf4ba8 patch
- https://github.com/python/cpython/commit/ec44b5a3258cbda947d5e07242ee562ed05ef24b patch
- http://www.openwall.com/lists/oss-security/2026/09/30/17
هشدار CVEهای بعدی این محصولمحصول را دنبال کنید تا آسیب‌پذیری‌های تازه را در تلگرام بگیرید.
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۷/۰۸
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۷/۱۱
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- PSF
پیش‌بینی بهره‌برداری (EPSS)
۰٫۵۲٪
احتمال بهره‌برداری در ۳۰ روز
۴۴٫۷٪
صدک (نسبت به همه‌ی CVEها)
ضعف‌ها (CWE)
- CWE-416