Linux · 
Red Hat · Security advisory · October 9, 2026
Red Hat · Security advisory · October 9, 2026RHSA-2026:77021: Security update for 14 packages
RHSA-2026:77021, released October 9, 2026, fixes 2 CVEs across 14 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
2
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.2
Base score, 0 to 10
Highest EPSS
0.0055
46th percentile
Priority of the 2 CVEs
Patch now 0
Urgent 1
High 1
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| python3.14 | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-debug | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-devel | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-freethreading | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-freethreading-debug | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-freethreading-devel | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-freethreading-idle | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-freethreading-libs | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-freethreading-test | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-freethreading-tkinter | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-idle | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-libs | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-test | RHEL 9 | 0:3.14.8-1.el9_8 |
| python3.14-tkinter | RHEL 9 | 0:3.14.8-1.el9_8 |
CVEs this fix closes
| Priority | CVE | Title | 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 |
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