Httpd
by Apache
Source repositories
CVEs (30)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2019-0211 | Hig | 0.71 | 7.8 | 0.65 | KEV | Apr 8, 2019 | In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent… | |
| CVE-2018-1312 | Cri | 0.65 | 9.8 | 0.16 | Mar 26, 2018 | In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests… | ||
| CVE-2017-3169 | Cri | 0.65 | 9.8 | 0.20 | Jun 20, 2017 | In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port. | ||
| CVE-2017-3167 | Cri | 0.65 | 9.8 | 0.20 | Jun 20, 2017 | In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed. | ||
| CVE-2017-9788 | Cri | 0.64 | 9.1 | 0.57 | Jul 13, 2017 | In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment… | ||
| CVE-2017-15715 | Hig | 0.60 | 8.1 | 0.86 | Mar 26, 2018 | In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally… | ||
| CVE-2018-11759 | Hig | 0.56 | 7.5 | 0.91 | Oct 31, 2018 | The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK (mod_jk) Connector 1.2.0 to 1.2.44 did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed… | ||
| CVE-1999-0236 | Hig | 0.54 | 7.5 | 0.26 | Jan 1, 1997 | ScriptAlias directory in NCSA and Apache httpd allowed attackers to read CGI programs. | ||
| CVE-2018-11803 | Hig | 0.53 | 7.5 | 0.58 | Feb 5, 2019 | Subversion's mod_dav_svn Apache HTTPD module versions 1.11.0 and 1.10.0 to 1.10.3 will crash after dereferencing an uninitialized pointer if the client omits the root path in a recursive directory listing operation. | ||
| CVE-2021-41524 | Hig | 0.51 | 7.5 | 0.25 | Oct 5, 2021 | While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is… | ||
| CVE-2026-24072 | Hig | 0.50 | 8.8 | 0.01 | May 4, 2026 | An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to version 2.4.67, which fixes this issue. | ||
| CVE-2017-15710 | Hig | 0.50 | 7.5 | 0.18 | Mar 26, 2018 | In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present… | ||
| CVE-2017-9789 | Hig | 0.50 | 7.5 | 0.10 | Jul 13, 2017 | When under stress, closing many connections, the HTTP/2 handling code in Apache httpd 2.4.26 would sometimes access memory after it has been freed, resulting in potentially erratic behaviour. | ||
| CVE-2026-34059 | Hig | 0.42 | 7.5 | 0.00 | May 4, 2026 | Buffer Over-read vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue. | ||
| CVE-2023-45802 | Med | 0.39 | 5.9 | 0.03 | Oct 23, 2023 | When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy… | ||
| CVE-2024-36387 | Med | 0.35 | 5.4 | 0.02 | Jul 1, 2024 | Serving WebSocket protocol upgrades over a HTTP/2 connection could result in a Null Pointer dereference, leading to a crash of the server process, degrading performance. | ||
| CVE-2025-27452 | Med | 0.34 | 5.3 | 0.00 | Jul 3, 2025 | The configuration of the Apache httpd webserver which serves the MEAC300-FNADE4 web application, is partly insecure. There are modules activated that are not required for the operation of the FNADE4 web application. The functionality of the some modules pose a risk to the… | ||
| CVE-2004-2096 | 0.03 | — | 0.02 | Dec 31, 2004 | Cross-site scripting (XSS) vulnerability in Mephistoles httpd 0.6.0 final allows remote attackers to execute arbitrary script as other users by injecting arbitrary HTML or script into the URL. | |||
| CVE-2009-1891 | 0.01 | — | 0.17 | Jul 10, 2009 | The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption). | |||
| CVE-2006-1681 | 0.01 | — | 0.07 | Apr 11, 2006 | Cross-site scripting (XSS) vulnerability in Cherokee HTTPD 0.5 and earlier allows remote attackers to inject arbitrary web script or HTML via a malformed request that generates an HTTP 400 error, which is not properly handled when the error message is generated. |
- risk 0.71cvss 7.8epss 0.65
In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent…
- risk 0.65cvss 9.8epss 0.16
In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests…
- risk 0.65cvss 9.8epss 0.20
In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port.
- risk 0.65cvss 9.8epss 0.20
In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed.
- risk 0.64cvss 9.1epss 0.57
In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment…
- risk 0.60cvss 8.1epss 0.86
In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally…
- risk 0.56cvss 7.5epss 0.91
The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK (mod_jk) Connector 1.2.0 to 1.2.44 did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed…
- risk 0.54cvss 7.5epss 0.26
ScriptAlias directory in NCSA and Apache httpd allowed attackers to read CGI programs.
- risk 0.53cvss 7.5epss 0.58
Subversion's mod_dav_svn Apache HTTPD module versions 1.11.0 and 1.10.0 to 1.10.3 will crash after dereferencing an uninitialized pointer if the client omits the root path in a recursive directory listing operation.
- risk 0.51cvss 7.5epss 0.25
While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is…
- risk 0.50cvss 8.8epss 0.01
An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
- risk 0.50cvss 7.5epss 0.18
In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present…
- risk 0.50cvss 7.5epss 0.10
When under stress, closing many connections, the HTTP/2 handling code in Apache httpd 2.4.26 would sometimes access memory after it has been freed, resulting in potentially erratic behaviour.
- risk 0.42cvss 7.5epss 0.00
Buffer Over-read vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
- risk 0.39cvss 5.9epss 0.03
When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy…
- risk 0.35cvss 5.4epss 0.02
Serving WebSocket protocol upgrades over a HTTP/2 connection could result in a Null Pointer dereference, leading to a crash of the server process, degrading performance.
- risk 0.34cvss 5.3epss 0.00
The configuration of the Apache httpd webserver which serves the MEAC300-FNADE4 web application, is partly insecure. There are modules activated that are not required for the operation of the FNADE4 web application. The functionality of the some modules pose a risk to the…
- CVE-2004-2096Dec 31, 2004risk 0.03cvss —epss 0.02
Cross-site scripting (XSS) vulnerability in Mephistoles httpd 0.6.0 final allows remote attackers to execute arbitrary script as other users by injecting arbitrary HTML or script into the URL.
- CVE-2009-1891Jul 10, 2009risk 0.01cvss —epss 0.17
The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).
- CVE-2006-1681Apr 11, 2006risk 0.01cvss —epss 0.07
Cross-site scripting (XSS) vulnerability in Cherokee HTTPD 0.5 and earlier allows remote attackers to inject arbitrary web script or HTML via a malformed request that generates an HTTP 400 error, which is not properly handled when the error message is generated.
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