VulertSecurity VulertSecurity

Vulnerability Database · Debian · apache2 · Version

apache2 2.4.66-1

2.4.66-1 is affected by 20 vulnerabilities.

The vulnerabilities that cover this exact version are listed below with the fixed version to move to.

Critical 3 High 12 Medium 3 Low 1 Unrated 1

All apache2 versions & vulnerabilities → Search the database for this package →
Database updated 23/Oct/2026

Concerned about your application's security?

Vulert continues monitoring your dependencies and alerts you when new vulnerabilities are disclosed. No installation and no source-code access required.

01 Vulnerabilities affecting this version

apache2 2.4.66-1 vulnerabilities

20 vulnerabilities cover apache2 2.4.66-1. Scroll the table for all of them, or open the full list in the database.

Vulnerability Severity Fixed version Disclosed
Critical Privilege Management Flaw in Apache HTTP Server's mod_ssl 9.8 critical No fix published 01 Oct 2026
Critical Use After Free Vulnerability in Apache HTTP Server (apache2) 9.8 critical No fix published 01 Oct 2026
Critical Use After Free Vulnerability in Apache HTTP Server's mod_rewrite 9.8 critical No fix published 01 Oct 2026
Integer Overflow Vulnerability in Apache HTTP Server (CVE-2026-93546) 8.8 high No fix published 01 Oct 2026
Authentication Bypass Vulnerability in Apache HTTP Server 2.4.x 8.1 high No fix published 01 Oct 2026
HTTP Request Smuggling Vulnerability in Apache HTTP Server (CVE-2026-63718) 7.5 high No fix published 01 Oct 2026
Critical FTP PASV Reply Address Validation Flaw in Apache HTTP Server (apache2) 7.5 high No fix published 01 Oct 2026
Critical Stack-Based Buffer Overflow in Apache HTTP Server (apache2) - CVE-2026-63292 7.5 high No fix published 01 Oct 2026
Apache HTTP Server Denial of Service Vulnerability in apache2 Package 7.5 high No fix published 01 Oct 2026
Critical Out-of-Bounds Write Vulnerability in Apache HTTP Server's mod_charset_lite 7.5 high No fix published 01 Oct 2026
Out-of-bounds Write Vulnerability in Apache HTTP Server's mod_proxy_html 7.5 high No fix published 01 Oct 2026
Denial of Service Vulnerability in Apache HTTP Server (apache2) - CVE-2026-48005 7.5 high No fix published 01 Oct 2026
NULL Pointer Dereference Vulnerability in Apache HTTP Server (mod_heartmonitor) 7.5 high No fix published 01 Oct 2026
Sensitive Information Exposure in Apache HTTP Server's mod_session_cookie Module 7.5 high No fix published 01 Oct 2026
Critical Use After Free Vulnerability in Apache HTTP Server (apache2) 7.3 high No fix published 01 Oct 2026
Path Equivalence Vulnerability in Apache HTTP Server's mod_userdir Module 5.3 medium No fix published 01 Oct 2026
Apache HTTP Server mod_dav_fs Vulnerability - CVE-2026-58415: Internal State File Exposure 5.3 medium No fix published 01 Oct 2026
Memory Calculation Bug in Apache HTTPD 2.4.67 and Earlier - CVE-2026-42528 4.3 medium No fix published 01 Oct 2026
Apache HTTP Server CGI Handler Misconfiguration Vulnerability in apache2 3.7 low No fix published 01 Oct 2026
Critical Vulnerability in Apache2 Package: CVE-2026-59685 N/A unrated No fix published 01 Oct 2026

Looking for another version, or everything Vulert holds for apache2?

All versions → Full vulnerability list →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →

Questions

About apache2 2.4.66-1

Is apache2 2.4.66-1 vulnerable?

Yes. 20 vulnerabilities in the Vulert database cover apache2 2.4.66-1: 3 critical, 12 high, 3 medium and 1 low, plus 1 not yet rated. Each entry above names the fixed version to move to.

How do I monitor apache2 for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the apache2 version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.