Vulnerabilities (CVE)

Filtered by vendor Apache Subscribe
Filtered by product Http Server
Total 351 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2007-1742 1 Apache 1 Http Server 2026-06-16 3.7 LOW N/A
suexec in Apache HTTP Server (httpd) 2.2.3 uses a partial comparison for verifying whether the current directory is within the document root, which might allow local users to perform unauthorized operations on incorrect directories, as demonstrated using "html_backup" and "htmleditor" under an "html" directory. NOTE: the researcher, who is reliable, claims that the vendor disputes the issue because "the attacks described rely on an insecure server configuration" in which the user "has write access to the document root."
CVE-2007-1741 1 Apache 1 Http Server 2026-06-16 6.2 MEDIUM N/A
Multiple race conditions in suexec in Apache HTTP Server (httpd) 2.2.3 between directory and file validation, and their usage, allow local users to gain privileges and execute arbitrary code by renaming directories or performing symlink attacks. NOTE: the researcher, who is reliable, claims that the vendor disputes the issue because "the attacks described rely on an insecure server configuration" in which the user "has write access to the document root."
CVE-2007-0450 1 Apache 2 Http Server, Tomcat 2026-06-16 5.0 MEDIUM N/A
Directory traversal vulnerability in Apache HTTP Server and Tomcat 5.x before 5.5.22 and 6.x before 6.0.10, when using certain proxy modules (mod_proxy, mod_rewrite, mod_jk), allows remote attackers to read arbitrary files via a .. (dot dot) sequence with combinations of (1) "/" (slash), (2) "\" (backslash), and (3) URL-encoded backslash (%5C) characters in the URL, which are valid separators in Tomcat but not in Apache.
CVE-2007-0086 1 Apache 1 Http Server 2026-06-16 7.8 HIGH N/A
The Apache HTTP Server, when accessed through a TCP connection with a large window size, allows remote attackers to cause a denial of service (network bandwidth consumption) via a Range header that specifies multiple copies of the same fragment. NOTE: the severity of this issue has been disputed by third parties, who state that the large window size required by the attack is not normally supported or configured by the server, or that a DDoS-style attack would accomplish the same goal
CVE-2006-5752 4 Apache, Canonical, Fedoraproject and 1 more 7 Http Server, Ubuntu Linux, Fedora and 4 more 2026-06-16 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in mod_status.c in the mod_status module in Apache HTTP Server (httpd), when ExtendedStatus is enabled and a public server-status page is used, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors involving charsets with browsers that perform "charset detection" when the content-type is not specified.
CVE-2006-4154 1 Apache 1 Http Server 2026-06-16 6.8 MEDIUM N/A
Format string vulnerability in the mod_tcl module 1.0 for Apache 2.x allows context-dependent attackers to execute arbitrary code via format string specifiers that are not properly handled in a set_var function call in (1) tcl_cmds.c and (2) tcl_core.c.
CVE-2006-4110 1 Apache 1 Http Server 2026-06-16 4.3 MEDIUM N/A
Apache 2.2.2, when running on Windows, allows remote attackers to read source code of CGI programs via a request that contains uppercase (or alternate case) characters that bypass the case-sensitive ScriptAlias directive, but allow access to the file on case-insensitive file systems.
CVE-2006-3918 4 Apache, Canonical, Debian and 1 more 5 Http Server, Ubuntu Linux, Debian Linux and 2 more 2026-06-16 4.3 MEDIUM N/A
http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before 2.0.58, and 2.2 before 2.2.2, does not sanitize the Expect header from an HTTP request when it is reflected back in an error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated using a Flash SWF file.
CVE-2006-3747 3 Apache, Canonical, Debian 3 Http Server, Ubuntu Linux, Debian Linux 2026-06-16 7.6 HIGH N/A
Off-by-one error in the ldap scheme handling in the Rewrite module (mod_rewrite) in Apache 1.3 from 1.3.28, 2.0.46 and other versions before 2.0.59, and 2.2, when RewriteEngine is enabled, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted URLs that are not properly handled using certain rewrite rules.
CVE-2006-20001 1 Apache 1 Http Server 2026-06-16 N/A 7.5 HIGH
A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier.
CVE-2005-3357 1 Apache 1 Http Server 2026-06-16 5.4 MEDIUM N/A
mod_ssl in Apache 2.0 up to 2.0.55, when configured with an SSL vhost with access control and a custom error 400 error page, allows remote attackers to cause a denial of service (application crash) via a non-SSL request to an SSL port, which triggers a NULL pointer dereference.
CVE-2005-3352 1 Apache 1 Http Server 2026-06-16 4.3 MEDIUM N/A
Cross-site scripting (XSS) vulnerability in the mod_imap module of Apache httpd before 1.3.35-dev and Apache httpd 2.0.x before 2.0.56-dev allows remote attackers to inject arbitrary web script or HTML via the Referer when using image maps.
CVE-2005-2970 4 Apache, Canonical, Fedoraproject and 1 more 6 Http Server, Ubuntu Linux, Fedora Core and 3 more 2026-06-16 5.0 MEDIUM N/A
Memory leak in the worker MPM (worker.c) for Apache 2, in certain circumstances, allows remote attackers to cause a denial of service (memory consumption) via aborted connections, which prevents the memory for the transaction pool from being reused for other connections.
CVE-2005-2728 1 Apache 1 Http Server 2026-06-16 5.0 MEDIUM N/A
The byte-range filter in Apache 2.0 before 2.0.54 allows remote attackers to cause a denial of service (memory consumption) via an HTTP header with a large Range field.
CVE-2005-2700 3 Apache, Canonical, Debian 3 Http Server, Ubuntu Linux, Debian Linux 2026-06-16 10.0 HIGH N/A
ssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host configuration, does not properly enforce "SSLVerifyClient require" in a per-location context, which allows remote attackers to bypass intended access restrictions.
CVE-2005-2088 2 Apache, Debian 2 Http Server, Debian Linux 2026-06-16 4.3 MEDIUM N/A
The Apache HTTP server before 1.3.34, and 2.0.x before 2.0.55, when acting as an HTTP proxy, allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes Apache to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."
CVE-2005-1344 1 Apache 1 Http Server 2026-06-16 7.5 HIGH N/A
Buffer overflow in htdigest in Apache 2.0.52 may allow attackers to execute arbitrary code via a long realm argument. NOTE: since htdigest is normally only locally accessible and not setuid or setgid, there are few attack vectors which would lead to an escalation of privileges, unless htdigest is executed from a CGI program. Therefore this may not be a vulnerability.
CVE-2005-1268 3 Apache, Debian, Redhat 5 Http Server, Debian Linux, Enterprise Linux Desktop and 2 more 2026-06-16 5.0 MEDIUM N/A
Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
CVE-2004-2343 1 Apache 1 Http Server 2026-06-16 7.2 HIGH N/A
Apache HTTP Server 2.0.47 and earlier allows local users to bypass .htaccess file restrictions, as specified in httpd.conf with directives such as Deny From All, by using an ErrorDocument directive. NOTE: the vendor has disputed this issue, since the .htaccess mechanism is only intended to restrict external web access, and a local user already has the privileges to perform the same operations without using ErrorDocument
CVE-2004-1834 1 Apache 1 Http Server 2026-06-16 2.1 LOW N/A
mod_disk_cache in Apache 2.0 through 2.0.49 stores client headers, including authentication information, on the hard disk, which could allow local users to gain sensitive information.