Apache HTTP Server Security (httpd.org JSON)

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  • Tags: webserver, httpd
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Letzter Fetch Letzter Erfolg Aufeinanderfolgende Fehler Letzte Fehlermeldung ETag Last-Modified
2026-10-21 10:17 UTC 2026-10-21 10:17 UTC 0 - "1f3628-65ddf9e0a9d8b-gzip" Thu, 15 Oct 2026 11:47:50 GMT

Letzte Eintraege

267 Eintraege · 50 pro Seite · Seite 5 von 6

Veroeffentlicht Titel CVEs EPSS-Pctl Severity
2007-06-19 00:00

CVE-2007-3304: The Apache HTTP server did not verify that a process was an Apache child process before sending it signals. A local attacker with the ability to run scripts on the HTTP server could manipulate the scoreboard and cause arbitrary processes to be terminated which could lead to a denial of service.

CVE-2007-3304

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2007-06-18 00:00

CVE-2007-1863: A bug was found in the mod_cache module. On sites where caching is enabled, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. This could lead to a denial of service if using a threaded Multi-Processing Module.

CVE-2007-1863

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2007-06-01 00:00

CVE-2007-1862: The recall_headers function in mod_mem_cache in Apache 2.2.4 did not properly copy all levels of header data, which can cause Apache to return HTTP headers containing previously used data, which could be used by remote attackers to obtain potentially sensitive information.

CVE-2007-1862

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2006-12-10 00:00

CVE-2007-3847: A flaw was found in the Apache HTTP Server mod_proxy module. On sites where a reverse proxy is configured, a remote attacker could send a carefully crafted request that would cause the Apache child process handling that request to crash. On sites where a forward proxy is configured, an attacker could cause a similar crash if a user could be persuaded to visit a malicious site using the proxy. This could lead to a denial of service if using a threaded Multi-Processing Module.

CVE-2007-3847

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2006-07-27 00:00

CVE-2006-3747: An off-by-one flaw exists in the Rewrite module, mod_rewrite. Depending on the manner in which Apache httpd was compiled, this software defect may result in a vulnerability which, in combination with certain types of Rewrite rules in the web server configuration files, could be triggered remotely. For vulnerable builds, the nature of the vulnerability can be denial of service (crashing of web server processes) or potentially allow arbitrary code execution.

CVE-2006-3747

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2006-05-08 00:00

CVE-2006-3918: A flaw in the handling of invalid Expect headers. If an attacker can influence the Expect header that a victim sends to a target site they could perform a cross-site scripting attack. It is known that some versions of Flash can set an arbitrary Expect header which can trigger this flaw. Not marked as a security issue for 2.0 or 2.2 as the cross-site scripting is only returned to the victim after the server times out a connection.

CVE-2006-3918

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2005-12-12 00:00

CVE-2005-3352: A flaw in mod_imap when using the Referer directive with image maps. In certain site configurations a remote attacker could perform a cross-site scripting attack if a victim can be forced to visit a malicious URL using certain web browsers.

CVE-2005-3352

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2005-12-12 00:00

CVE-2005-3357: A NULL pointer dereference flaw in mod_ssl was discovered affecting server configurations where an SSL virtual host is configured with access control and a custom 400 error document. A remote attacker could send a carefully crafted request to trigger this issue which would lead to a crash. This crash would only be a denial of service if using the worker MPM.

CVE-2005-3357

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2005-08-30 00:00

CVE-2005-2700: A flaw in the mod_ssl handling of the "SSLVerifyClient" directive. This flaw would occur if a virtual host has been configured using "SSLVerifyClient optional" and further a directive "SSLVerifyClient required" is set for a specific location. For servers configured in this fashion, an attacker may be able to access resources that should otherwise be protected, by not supplying a client certificate when connecting.

CVE-2005-2700

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2005-08-01 00:00

CVE-2005-2491: An integer overflow flaw was found in PCRE, a Perl-compatible regular expression library included within httpd. A local user who has the ability to create .htaccess files could create a maliciously crafted regular expression in such as way that they could gain the privileges of a httpd child.

CVE-2005-2491

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2005-07-07 00:00

CVE-2005-2728: A flaw in the byterange filter would cause some responses to be buffered into memory. If a server has a dynamic resource such as a CGI script or PHP script which generates a large amount of data, an attacker could send carefully crafted requests in order to consume resources, potentially leading to a Denial of Service.

CVE-2005-2728

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2005-06-11 00:00

CVE-2005-2088: A flaw occured when using the Apache server as a HTTP proxy. A remote attacker could send a HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, causing 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. This could allow the bypass of web application firewall protection or lead to cross-site scripting (XSS) attacks.

CVE-2005-2088

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2005-06-08 00:00

CVE-2005-1268: An off-by-one stack overflow was discovered in the mod_ssl CRL verification callback. In order to exploit this issue the Apache server would need to be configured to use a malicious certificate revocation list (CRL)

CVE-2005-1268

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2004-11-01 00:00

CVE-2004-0942: An issue was discovered where the field length limit was not enforced for certain malicious requests. This could allow a remote attacker who is able to send large amounts of data to a server the ability to cause Apache children to consume proportional amounts of memory, leading to a denial of service.

CVE-2004-0942

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2004-10-21 00:00

CVE-2004-0940: A buffer overflow in mod_include could allow a local user who is authorised to create server side include (SSI) files to gain the privileges of a httpd child.

CVE-2004-0940

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2004-10-01 00:00

CVE-2004-0885: An issue has been discovered in the mod_ssl module when configured to use the "SSLCipherSuite" directive in directory or location context. If a particular location context has been configured to require a specific set of cipher suites, then a client will be able to access that location using any cipher suite allowed by the virtual host configuration.

CVE-2004-0885

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2004-09-18 00:00

CVE-2004-0811: A flaw in Apache 2.0.51 (only) broke the merging of the Satisfy directive which could result in access being granted to resources despite any configured authentication

CVE-2004-0811

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2004-09-15 00:00

CVE-2004-0786: Testing using the Codenomicon HTTP Test Tool performed by the Apache Software Foundation security group and Red Hat uncovered an input validation issue in the IPv6 URI parsing routines in the apr-util library. If a remote attacker sent a request including a carefully crafted URI, an httpd child process could be made to crash. One some BSD systems it is believed this flaw may be able to lead to remote code execution.

CVE-2004-0786

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2004-09-15 00:00

CVE-2004-0747: A buffer overflow was found in the expansion of environment variables during configuration file parsing. This issue could allow a local user to gain the privileges of a httpd child if a server can be forced to parse a carefully crafted .htaccess file written by a local user.

CVE-2004-0747

 HIGH
2004-09-12 00:00

CVE-2004-0809: An issue was discovered in the mod_dav module which could be triggered for a location where WebDAV authoring access has been configured. A malicious remote client which is authorized to use the LOCK method could force an httpd child process to crash by sending a particular sequence of LOCK requests. This issue does not allow execution of arbitrary code. and will only result in a denial of service where a threaded process model is in use.

CVE-2004-0809

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2004-07-07 00:00

CVE-2004-0748: An issue was discovered in the mod_ssl module in Apache 2.0. A remote attacker who forces an SSL connection to be aborted in a particular state may cause an Apache child process to enter an infinite loop, consuming CPU resources.

CVE-2004-0748

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2004-07-07 00:00

CVE-2004-0751: An issue was discovered in the mod_ssl module in Apache 2.0.44-2.0.50 which could be triggered if the server is configured to allow proxying to a remote SSL server. A malicious remote SSL server could force an httpd child process to crash by sending a carefully crafted response header. This issue is not believed to allow execution of arbitrary code and will only result in a denial of service where a threaded process model is in use.

CVE-2004-0751

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2004-07-01 00:00

CVE-2004-0493: A memory leak in parsing of HTTP headers which can be triggered remotely may allow a denial of service attack due to excessive memory consumption.

CVE-2004-0493

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2004-05-17 00:00

CVE-2004-0488: A buffer overflow in the mod_ssl FakeBasicAuth code could be exploited by an attacker using a (trusted) client certificate with a subject DN field which exceeds 6K in length.

CVE-2004-0488

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2004-04-02 00:00

CVE-2003-0132: Apache 2.0 versions before Apache 2.0.45 had a significant Denial of Service vulnerability. Remote attackers could cause a denial of service (memory consumption) via large chunks of linefeed characters, which causes Apache to allocate 80 bytes for each linefeed.

CVE-2003-0132

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2004-03-20 00:00

CVE-2004-1834: The experimental mod_disk_cache module stored client authentication credentials for cached objects such as proxy authentication credentials and Basic Authentication passwords on disk.

CVE-2004-1834

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2004-03-18 00:00

CVE-2004-0174: A starvation issue on listening sockets occurs when a short-lived connection on a rarely-accessed listening socket will cause a child to hold the accept mutex and block out new connections until another connection arrives on that rarely-accessed listening socket. This issue is known to affect some versions of AIX, Solaris, and Tru64; it is known to not affect FreeBSD or Linux.

CVE-2004-0174

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2004-02-20 00:00

CVE-2004-0113: A memory leak in mod_ssl allows a remote denial of service attack against an SSL-enabled server by sending plain HTTP requests to the SSL port.

CVE-2004-0113

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2003-12-18 00:00

CVE-2003-0987: mod_digest does not properly verify the nonce of a client response by using a AuthNonce secret. This could allow a malicious user who is able to sniff network traffic to conduct a replay attack against a website using Digest protection. Note that mod_digest implements an older version of the MD5 Digest Authentication specification which is known not to work with modern browsers. This issue does not affect mod_auth_digest.

CVE-2003-0987

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2003-10-27 00:00

CVE-2003-0789: A bug in mod_cgid mishandling of CGI redirect paths can result in CGI output going to the wrong client when a threaded MPM is used.

CVE-2003-0789

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2003-10-27 00:00

CVE-2003-0542: By using a regular expression with more than 9 captures a buffer overflow can occur in mod_alias or mod_rewrite. To exploit this an attacker would need to be able to create a carefully crafted configuration file (.htaccess or httpd.conf)

CVE-2003-0542

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2003-10-15 00:00

CVE-2003-0993: A bug in the parsing of Allow/Deny rules using IP addresses without a netmask on big-endian 64-bit platforms causes the rules to fail to match.

CVE-2003-0993

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2003-07-18 00:00

CVE-2003-0460: The rotatelogs support program on Win32 and OS/2 would quit logging and exit if it received special control characters such as 0x1A.

CVE-2003-0460

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2003-07-09 00:00

CVE-2003-0192: A bug in the optional renegotiation code in mod_ssl included with Apache httpd can cause cipher suite restrictions to be ignored. This is triggered if optional renegotiation is used (SSLOptions +OptRenegotiate) along with verification of client certificates and a change to the cipher suite over the renegotiation.

CVE-2003-0192

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2003-07-09 00:00

CVE-2003-0254: When a client requests that proxy ftp connect to a ftp server with IPv6 address, and the proxy is unable to create an IPv6 socket, an infinite loop occurs causing a remote Denial of Service.

CVE-2003-0254

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2003-07-09 00:00

CVE-2003-0253: In a server with multiple listening sockets a certain error returned by accept() on a rarely access port can cause a temporary denial of service, due to a bug in the prefork MPM.

CVE-2003-0253

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2003-06-10 00:00

CVE-2004-0492: A buffer overflow was found in the Apache proxy module, mod_proxy, which can be triggered by receiving an invalid Content-Length header. In order to exploit this issue an attacker would need to get an Apache installation that was configured as a proxy to connect to a malicious site. This would cause the Apache child processing the request to crash, although this does not represent a significant Denial of Service attack as requests will continue to be handled by other Apache child processes. This issue may lead to remote arbitrary code execution on some BSD platforms.

CVE-2004-0492

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2003-05-28 00:00

CVE-2003-0245: A vulnerability in the apr_psprintf function in the Apache Portable Runtime (APR) library allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long strings, as demonstrated using XML objects to mod_dav, and possibly other vectors.

CVE-2003-0245

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2003-05-28 00:00

CVE-2003-0189: A build system problem in Apache 2.0.40 through 2.0.45 allows remote attackers to cause a denial of access to authenticated content when a threaded server is used.

CVE-2003-0189

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2003-03-31 00:00

CVE-2003-0134: Apache on OS2 up to and including Apache 2.0.45 have a Denial of Service vulnerability caused by device names.

CVE-2003-0134

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2003-02-24 00:00

CVE-2003-0020: Apache does not filter terminal escape sequences from error logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.

CVE-2003-0020

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2003-02-24 00:00

CVE-2003-0083: Apache did not filter terminal escape sequences from its access logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.

CVE-2003-0083

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2003-01-20 00:00

CVE-2003-0017: On Windows platforms Apache could be forced to serve unexpected files by appending illegal characters such as '<' to the request URL

CVE-2003-0017

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2003-01-20 00:00

CVE-2003-0016: On Windows platforms Apache did not correctly filter MS-DOS device names which could lead to denial of service attacks or remote code execution.

CVE-2003-0016

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2002-10-03 00:00

CVE-2002-0839: The permissions of the shared memory used for the scoreboard allows an attacker who can execute under the Apache UID to send a signal to any process as root or cause a local denial of service attack.

CVE-2002-0839

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2002-10-03 00:00

CVE-2002-0843: Buffer overflows in the benchmarking utility ab could be exploited if ab is run against a malicious server

CVE-2002-0843

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2002-10-02 00:00

CVE-2002-0840: Cross-site scripting (XSS) vulnerability in the default error page of Apache 2.0 before 2.0.43, and 1.3.x up to 1.3.26, when UseCanonicalName is "Off" and support for wildcard DNS is present, allows remote attackers to execute script as other web page visitors via the Host: header.

CVE-2002-0840

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2002-09-19 00:00

CVE-2002-1593: A flaw was found in handling of versioning hooks in mod_dav. An attacker could send a carefully crafted request in such a way to cause the child process handling the connection to crash. This issue will only result in a denial of service where a threaded process model is in use.

CVE-2002-1593

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2002-08-09 00:00

CVE-2002-0654: A path-revealing exposure was present in multiview type map negotiation (such as the default error documents) where a module would report the full path of the typemapped .var file when multiple documents or no documents could be served. Additionally a path-revealing exposure in cgi/cgid when Apache fails to invoke a script. The modules would report "couldn't create child process /path-to-script/script.pl" revealing the full path of the script.

CVE-2002-0654

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2002-08-09 00:00

CVE-2002-0661: Certain URIs would bypass security and allow users to invoke or access any file depending on the system configuration. Affects Windows, OS2, Netware and Cygwin platforms only.

CVE-2002-0661

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