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Apache HTTP Server CVE-2026-44119

| EUVDEUVD-2026-35094 MEDIUM
Improper Privilege Management (CWE-269)
2026-06-08 apache GHSA-fm8w-r4qw-vq3r
5.5
CVSS 3.1 · Vendor: apache
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain local or web-hosting account with directory write access
  2. Delivery
    Identify Apache-served directory with AllowOverride enabled
  3. Exploit
    Write malicious .htaccess with file-reading directives
  4. Execution
    Trigger HTTP request to invoke .htaccess processing
  5. Persist
    Apache httpd reads target file under its service account privileges
  6. Impact
    Attacker retrieves sensitive file contents from response or logs

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires all of the following: (1) the target system runs Apache HTTP Server 2.4.0 through 2.4.67; (2) .htaccess overrides are enabled - specifically, the server configuration must include 'AllowOverride' set to a value other than 'None' for the targeted directory, which is a common but not universal configuration; (3) the attacker has an authenticated local system account or web-hosting account with filesystem write access to a directory that is served by the Apache instance and has AllowOverride enabled. The CVSS vector PR:L confirms low-privilege authenticated access is required - unauthenticated remote exploitation is not possible. The attack is further limited by AV:L (local vector only) and SSVC's 'not automatable' classification, meaning mass exploitation across systems is not feasible. Exploitation impact is bounded to confidentiality only - the attacker cannot modify or delete files via this path.

Impact

The CVSS 3.1 score of 5.5 (Medium) reflects a local attack vector (AV:L), low complexity (AC:L), low privileges required (PR:L), no user interaction (UI:N), and high confidentiality impact with no integrity or availability impact (C:H/I:N/A:N). The SSVC framework independently corroborates a measured risk posture: exploitation is classified as 'none', the vulnerability is not automatable, and technical impact is partial. No EPSS score was provided in the source data, so exploitation probability cannot be quantified numerically. The vulnerability is not listed in the CISA KEV catalog, and no public exploit code has been identified. The combination of a local attack vector and the requirement for .htaccess write access significantly limits the realistic attacker population to insiders, compromised accounts, or shared-hosting scenarios where multiple users can write to web-served directories. This is a real but lower-priority finding for most enterprise deployments; shared hosting or multi-tenant web environments represent the highest-risk use case.

Exploit ScenarioDerived

A local user on a shared web hosting platform with write access to a web-served directory crafts a .htaccess file containing directives (such as ErrorDocument or Include paths) that instruct the Apache httpd process to read and surface the contents of sensitive server files - for example, application database credentials, private SSL keys stored in accessible paths, or OS-level files readable by the httpd service account. The attacker then triggers an HTTP request to the directory, causing Apache to process the malicious .htaccess and return or log the targeted file contents. No public proof-of-concept code has been identified at the time of this analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jun 09, 2026

Privilege escalation in Apache HTTP Server 2.4.0 through 2.4.67 allows local users with .htaccess write access to read arbitrary files using the privileges of the httpd daemon process, exploiting improper privilege management (CWE-269). The attack vector is local, requires low privileges, and impacts only confidentiality - no integrity or availability impact is present. No public exploit code and no active exploitation have been identified; SSVC classifies technical impact as partial and the vulnerability as non-automatable, consistent with the targeted, local nature of the attack.

RemediationAI

Upgrade to Apache HTTP Server 2.4.68, which contains the vendor-released fix per the official Apache security advisory at https://httpd.apache.org/security/vulnerabilities_24.html. This is a confirmed patch version from the Apache Software Foundation. If immediate upgrade is not possible, restrict .htaccess functionality by setting 'AllowOverride None' in the relevant Directory blocks of the server configuration - this disables .htaccess processing entirely and eliminates the attack surface, though it may break per-directory application configurations that rely on .htaccess overrides. Alternatively, audit and restrict filesystem write permissions so that only fully trusted accounts can modify .htaccess files. In shared-hosting environments, consider chroot jails or per-vhost process isolation (e.g., mod_ruid2 or suEXEC) to limit the files readable by the httpd process in a given vhost context. Note that disabling AllowOverride may require migrating application-level .htaccess directives into the main server configuration, which carries an operational cost.

Affected VersionsENISA

Apache HTTP Server 2.4.0 ≤2.4.67

Affected Packages

euvd apache_http_server no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Apache HTTP Server supports per-directory configuration overrides via .htaccess files, which allow delegated control over server behavior within designated directories. The root cause, CWE-269 (Improper Privilege Management), indicates that the server fails to enforce adequate privilege boundaries when processing .htaccess directives - allowing an author of such a file to direct the httpd process to access files that the .htaccess author themselves would not be permitted to read directly. Because the httpd daemon runs under a dedicated service account (typically 'www-data', 'apache', or 'httpd'), it may have read access to sensitive configuration files, application secrets, or system data not normally accessible to unprivileged local users. Affected product is identified via CPE cpe:2.3:a:apache_software_foundation:apache_http_server:*:*:*:*:*:*:*:* covering the full 2.4.x branch through 2.4.67, as confirmed by ENISA EUVD-2026-35094 and the Apache security advisory.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (apache) PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SUSE MEDIUM
Red Hat 5.5 MEDIUM

Primary rating from Vendor (apache).

CVSS VectorVendor: apache

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
CVSS changed
Jun 09, 2026 - 13:22 NVD
5.5 (None) 5.5 (MEDIUM)
CVE Published
Jun 08, 2026 - 15:17 nvd
UNKNOWN (no severity yet)
CVE Published
Jun 08, 2026 - 15:17 nvd
MEDIUM 5.5

DescriptionCVE.org

Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess authors to read files with the privileges of the httpd user.

This issue affects Apache HTTP Server: from through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.

Threat Intelligence Overview

EPSS Score
0.0%
Top 96% exploitable
Data Quality
7 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment MSRC Vendor VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

CVE-2026-23918 HIGH POC
8.8 May 04

Remote code execution via double-free memory corruption in Apache HTTP Server 2.4.66's HTTP/2 protocol implementation al

CVE-2026-34059 HIGH POC
7.5 May 04

Buffer over-read in Apache HTTP Server through 2.4.66 enables remote unauthenticated information disclosure at network s

CVE-2026-28780 CRITICAL
9.8 May 05

Remote heap buffer overflow in Apache HTTP Server's mod_proxy_ajp module allows complete system compromise when proxying

CVE-2026-29167 CRITICAL
9.8 Jun 08

Remote code execution in Apache HTTP Server versions 2.4.0 through 2.4.67 is possible through a use-after-free condition

CVE-2026-42535 CRITICAL
9.1 Jun 08

Improper path handling in the mod_dav_fs module of Apache HTTP Server 2.4.67 and earlier permits a WebDAV content author

CVE-2026-93546 HIGH
8.8 Oct 01

An integer overflow in the mod_dav_fs module of Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client

CVE-2026-24072 HIGH
8.8 May 04

Local .htaccess authors can escalate privileges to read arbitrary files as the httpd daemon user in Apache HTTP Server 2

CVE-2026-63292 HIGH
7.5 Oct 01

Stack-based buffer overflow in the mod_vhost_alias module of Apache HTTP Server through 2.4.68 allows a remote, unauthen

CVE-2026-59685 HIGH
7.5 Oct 01

An out-of-bounds write in Apache HTTP Server 2.4.0 through 2.4.68 on Windows can corrupt memory when the server processe

CVE-2026-29169 HIGH
7.5 May 04

Remote attackers can crash Apache HTTP Server 2.4.66 and earlier by sending malicious requests that trigger a NULL point

CVE-2026-42536 HIGH
7.5 Jun 08

Denial of service in Apache HTTP Server 2.4.0 through 2.4.67 allows remote unauthenticated attackers to crash the server

CVE-2026-34355 HIGH
7.5 Jun 08

Denial of service in Apache HTTP Server 2.4.0 through 2.4.67 stems from a heap buffer overflow in the mod_proxy_html out

Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Basesystem 15 SP7 Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP7 Fixed
SUSE Linux Enterprise Module for Server Applications 15 SP7 Fixed

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