Vulnerability · Published Oct 1, 2026 · Assigned by apache
CVE-2026-59797Apache HTTP Server: mod_ssl SSLRequire allows .htaccess ap_expr file-function
Critical 9.8
In plain English
A critical-severity privilege mismanagement in Apache HTTP Server from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 58.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Improper Privilege Management vulnerability in Apache HTTP Server's mod_ssl via SSLRequire and file-related expressions. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.21 | apache2 | 2.4.69-r0 | ALPINE-CVE-2026-59797 |
| Alpine:v3.22 | apache2 | 2.4.69-r0 | ALPINE-CVE-2026-59797 |
| Alpine:v3.23 | apache2 | 2.4.69-r0 | ALPINE-CVE-2026-59797 |
| Alpine:v3.24 | apache2 | 2.4.69-r0 | ALPINE-CVE-2026-59797 |
| Debian:12 | apache2 | no fix listed | DEBIAN-CVE-2026-59797 |
| Debian:13 | apache2 | 2.4.69-1~deb13u1 | DEBIAN-CVE-2026-59797 |
| Debian:14 | apache2 | 2.4.69-1 | DEBIAN-CVE-2026-59797 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.24 | UBUNTU-CVE-2026-59797 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.24 | USN-8898-1 |
| Ubuntu:24.04:LTS | apache2 | 2.4.58-1ubuntu8.16 | UBUNTU-CVE-2026-59797 |
| Ubuntu:24.04:LTS | apache2 | 2.4.58-1ubuntu8.16 | USN-8898-1 |
| Ubuntu:26.04:LTS | apache2 | 2.4.66-2ubuntu2.5 | UBUNTU-CVE-2026-59797 |
| Ubuntu:26.04:LTS | apache2 | 2.4.66-2ubuntu2.5 | USN-8898-1 |
| Ubuntu:26.10 | apache2 | no fix listed | UBUNTU-CVE-2026-59797 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache HTTP Server | 2.4.0 – through 2.4.68 |
Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H