Linux · 
Ubuntu · Package update · October 1, 2026
Ubuntu · Package update · October 1, 2026apache2 2.4.66-2ubuntu2.5: apache2 2.4.66-2ubuntu2.5 for Ubuntu 26.04.1 LTS (resolute)
apache2 2.4.66-2ubuntu2.5, released October 1, 2026, fixes 3 CVEs in apache2. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
3
3 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0059
48th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 3
High 0
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| apache2 | Ubuntu 26.04.1 LTS (resolute) | 2.4.66-2ubuntu2.5 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-57941 | Apache HTTP Server: mod_http2 use-after-free / wild write via shared session->bbtmp re-entrancy | 9.8 | 0.0059 | None reported |
| Urgent | CVE-2026-56154 | Apache HTTP Server: mod_rewrite use-after-free via %{LA-U:HTTP:...} | 9.8 | 0.0054 | None reported |
| Urgent | CVE-2026-59797 | Apache HTTP Server: mod_ssl SSLRequire allows .htaccess ap_expr file-function | 9.8 | 0.0050 | None reported |
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