CVE-2026-19445
1 advisory.
python/python CVE-2026-19445: critical 9.2
Use-after-free of a server-side SSLContext when sni_callback switches contexts
Action: Upgrade python to 3.10.22 (3.10.x), 3.11.17 (3.11.x), 3.12.15 (3.12.x), 3.13.16 (3.13.x) or 3.14.8 (3.14.x) or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.10.22 | - |
| 3.11.0 | 3.11.17 | - |
| 3.12.0 | 3.12.15 | - |
| 3.13.0 | 3.13.16 | - |
| 3.14.0 | 3.14.8 | - |
Fixed versions
| 3.10.22 | 3.11.17 | 3.12.15 | 3.13.16 | 3.14.8 |
Sources
- python-runtime: PSF-2026-43
- https://mail.python.org/archives/list/security-announce@python.org/thread/QMQIUQB6WGGC3MI7I3WKQXOYOBDSPPS3/
- https://www.cve.org/CVERecord?id=CVE-2026-19445
CVE-2026-19445 · published · modified · JSON