Linux · Security advisory · October 20, 2026
RHSA-2026:85239: Security update for 7 packages
RHSA-2026:85239, released October 20, 2026, fixes 3 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
3
1 rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0055
45th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 1
High 2
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| platform-python | RHEL 8 | 0:3.6.8-79.el8_10 |
| platform-python-debug | RHEL 8 | 0:3.6.8-79.el8_10 |
| platform-python-devel | RHEL 8 | 0:3.6.8-79.el8_10 |
| python3-idle | RHEL 8 | 0:3.6.8-79.el8_10 |
| python3-libs | RHEL 8 | 0:3.6.8-79.el8_10 |
| python3-test | RHEL 8 | 0:3.6.8-79.el8_10 |
| python3-tkinter | RHEL 8 | 0:3.6.8-79.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2026-19445 | Use-after-free of a server-side SSLContext when sni_callback switches contexts | 9.2 | 0.0052 | None reported | |
| High | CVE-2026-19553 | SSLContext.wrap_bio() missing validation of server_hostname parameter | 8.1 | 0.0055 | None reported | |
| High | CVE-2026-12345 | Race condition in tempfile.TemporaryDirectory cleanup allows deleting files outside the temporary directory | 8.1 | 0.0034 | None reported |
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