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| purl | pkg:apache/httpd@2.4.39 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-17hy-4ppt-xyhw
Aliases: CVE-2021-26691 |
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted SessionHeader sent by an origin server could cause a heap overflow |
Affected by 5 other vulnerabilities. |
|
VCID-3djp-gq4c-1fa9
Aliases: CVE-2019-10092 |
A limited cross-site scripting issue was reported affecting the mod_proxy error page. An attacker could cause the link on the error page to be malfomed and instead point to a page of their choice. This would only be exploitable where a server was set up with proxying enabled but was misconfigured in such a way that the Proxy Error page was displayed. We have taken this opportunity to also remove request data from many other in-built error messages. Note however this issue did not affect them directly and their output was already escaped to prevent cross-site scripting attacks. |
Affected by 9 other vulnerabilities. |
|
VCID-5xrt-1n1q-4bey
Aliases: CVE-2020-1927 |
In Apache HTTP Server versions 2.4.0 to 2.4.41 some mod_rewrite configurations vulnerable to open redirect. |
Affected by 0 other vulnerabilities. |
|
VCID-66k7-maf9-dfcd
Aliases: CVE-2020-35452 |
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow |
Affected by 5 other vulnerabilities. |
|
VCID-91u7-vh6n-v7fm
Aliases: CVE-2020-13938 |
Apache HTTP Server versions 2.4.0 to 2.4.46 Unprivileged local users can stop httpd on Windows |
Affected by 5 other vulnerabilities. |
|
VCID-a9rw-3s1y-hqd7
Aliases: CVE-2019-10082 |
Using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown. |
Affected by 9 other vulnerabilities. |
|
VCID-auhk-ppv5-buaa
Aliases: CVE-2020-1934 |
in Apache HTTP Server versions 2.4.0 to 2.4.41, mod_proxy_ftp use of uninitialized value with malicious FTP backend. |
Affected by 0 other vulnerabilities. |
|
VCID-bvkg-nrwd-e7g8
Aliases: CVE-2021-26690 |
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service |
Affected by 5 other vulnerabilities. |
|
VCID-eesz-v6ae-gya3
Aliases: CVE-2020-9490 |
In Apache HTTP Server versions 2.4.20 to 2.4.43, a specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers. |
Affected by 0 other vulnerabilities. |
|
VCID-f2y3-s6j8-7ygr
Aliases: CVE-2019-17567 |
Apache HTTP Server versions 2.4.6 to 2.4.46 mod_proxy_wstunnel configured on an URL that is not necessarily Upgraded by the origin server was tunneling the whole connection regardless, thus allowing for subsequent requests on the same connection to pass through with no HTTP validation, authentication or authorization possibly configured. |
Affected by 5 other vulnerabilities. |
|
VCID-g6xr-qtwz-2yaq
Aliases: CVE-2021-30641 |
Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF' |
Affected by 5 other vulnerabilities. |
|
VCID-h6kk-81jx-h7b8
Aliases: CVE-2019-10098 |
Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL. |
Affected by 9 other vulnerabilities. |
|
VCID-t67v-c4gx-ukbj
Aliases: CVE-2020-11984 |
In Apache HTTP Server versions 2.4.32 to 2.4.43, mod_proxy_uwsgi has a information disclosure and possible RCE |
Affected by 0 other vulnerabilities. |
|
VCID-v41h-pbbe-zfas
Aliases: CVE-2019-10081 |
HTTP/2 very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client. |
Affected by 9 other vulnerabilities. |
|
VCID-y3k1-c4rn-xbc2
Aliases: CVE-2019-9517 |
A malicious client could perform a DoS attack by flooding a connection with requests and basically never reading responses on the TCP connection. Depending on h2 worker dimensioning, it was possible to block those with relatively few connections. |
Affected by 9 other vulnerabilities. |
|
VCID-yz3c-arnr-y3cs
Aliases: CVE-2020-11993 |
In Apache HTTP Server versions 2.4.20 to 2.4.43, when trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers. |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-4sss-a8ne-kqbc | When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. A server that never enabled the h2 protocol or that only enabled it for https: and did not configure the "H2Upgrade on" is unaffected by this. |
CVE-2019-0197
|
| VCID-6vxq-uxxw-ybeh | Using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparision when determining the method of a request and thus process the request incorrectly. |
CVE-2019-0196
|
| VCID-ehv1-yvpu-ubcg | 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 process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected. |
CVE-2019-0211
|
| VCID-ugdv-apr8-g3bz | In Apache HTTP Server 2.4 releases 2.4.37 and 2.4.38, a bug in mod_ssl when using per-location client certificate verification with TLSv1.3 allowed a client supporting Post-Handshake Authentication to bypass configured access control restrictions. |
CVE-2019-0215
|
| VCID-uwqg-yytc-vfae | When the path component of a request URL contains multiple consecutive slashes ('/'), directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing will implicitly collapse them. |
CVE-2019-0220
|
| VCID-w6p6-u8ku-k3f6 | In Apache HTTP Server 2.4 release 2.4.38 and prior, a race condition in mod_auth_digest when running in a threaded server could allow a user with valid credentials to authenticate using another username, bypassing configured access control restrictions. |
CVE-2019-0217
|
| Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
|---|---|---|---|---|---|
| 2026-04-01T12:36:23.090352+00:00 | Apache HTTPD Importer | Affected by | VCID-g6xr-qtwz-2yaq | https://httpd.apache.org/security/json/CVE-2021-30641.json | 38.0.0 |
| 2026-04-01T12:36:23.070804+00:00 | Apache HTTPD Importer | Affected by | VCID-17hy-4ppt-xyhw | https://httpd.apache.org/security/json/CVE-2021-26691.json | 38.0.0 |
| 2026-04-01T12:36:23.006134+00:00 | Apache HTTPD Importer | Affected by | VCID-bvkg-nrwd-e7g8 | https://httpd.apache.org/security/json/CVE-2021-26690.json | 38.0.0 |
| 2026-04-01T12:36:22.936851+00:00 | Apache HTTPD Importer | Affected by | VCID-66k7-maf9-dfcd | https://httpd.apache.org/security/json/CVE-2020-35452.json | 38.0.0 |
| 2026-04-01T12:36:22.852801+00:00 | Apache HTTPD Importer | Affected by | VCID-91u7-vh6n-v7fm | https://httpd.apache.org/security/json/CVE-2020-13938.json | 38.0.0 |
| 2026-04-01T12:36:22.794276+00:00 | Apache HTTPD Importer | Affected by | VCID-yz3c-arnr-y3cs | https://httpd.apache.org/security/json/CVE-2020-11993.json | 38.0.0 |
| 2026-04-01T12:36:22.725907+00:00 | Apache HTTPD Importer | Affected by | VCID-t67v-c4gx-ukbj | https://httpd.apache.org/security/json/CVE-2020-11984.json | 38.0.0 |
| 2026-04-01T12:36:22.702438+00:00 | Apache HTTPD Importer | Affected by | VCID-eesz-v6ae-gya3 | https://httpd.apache.org/security/json/CVE-2020-9490.json | 38.0.0 |
| 2026-04-01T12:36:22.659930+00:00 | Apache HTTPD Importer | Affected by | VCID-auhk-ppv5-buaa | https://httpd.apache.org/security/json/CVE-2020-1934.json | 38.0.0 |
| 2026-04-01T12:36:22.589185+00:00 | Apache HTTPD Importer | Affected by | VCID-5xrt-1n1q-4bey | https://httpd.apache.org/security/json/CVE-2020-1927.json | 38.0.0 |
| 2026-04-01T12:36:22.519034+00:00 | Apache HTTPD Importer | Affected by | VCID-f2y3-s6j8-7ygr | https://httpd.apache.org/security/json/CVE-2019-17567.json | 38.0.0 |
| 2026-04-01T12:36:22.468456+00:00 | Apache HTTPD Importer | Affected by | VCID-h6kk-81jx-h7b8 | https://httpd.apache.org/security/json/CVE-2019-10098.json | 38.0.0 |
| 2026-04-01T12:36:22.381764+00:00 | Apache HTTPD Importer | Affected by | VCID-3djp-gq4c-1fa9 | https://httpd.apache.org/security/json/CVE-2019-10092.json | 38.0.0 |
| 2026-04-01T12:36:22.313126+00:00 | Apache HTTPD Importer | Affected by | VCID-a9rw-3s1y-hqd7 | https://httpd.apache.org/security/json/CVE-2019-10082.json | 38.0.0 |
| 2026-04-01T12:36:22.270161+00:00 | Apache HTTPD Importer | Affected by | VCID-v41h-pbbe-zfas | https://httpd.apache.org/security/json/CVE-2019-10081.json | 38.0.0 |
| 2026-04-01T12:36:22.231955+00:00 | Apache HTTPD Importer | Affected by | VCID-y3k1-c4rn-xbc2 | https://httpd.apache.org/security/json/CVE-2019-9517.json | 38.0.0 |
| 2026-04-01T12:36:22.197862+00:00 | Apache HTTPD Importer | Fixing | VCID-uwqg-yytc-vfae | https://httpd.apache.org/security/json/CVE-2019-0220.json | 38.0.0 |
| 2026-04-01T12:36:22.137722+00:00 | Apache HTTPD Importer | Fixing | VCID-w6p6-u8ku-k3f6 | https://httpd.apache.org/security/json/CVE-2019-0217.json | 38.0.0 |
| 2026-04-01T12:36:22.079013+00:00 | Apache HTTPD Importer | Fixing | VCID-ugdv-apr8-g3bz | https://httpd.apache.org/security/json/CVE-2019-0215.json | 38.0.0 |
| 2026-04-01T12:36:22.061592+00:00 | Apache HTTPD Importer | Fixing | VCID-ehv1-yvpu-ubcg | https://httpd.apache.org/security/json/CVE-2019-0211.json | 38.0.0 |
| 2026-04-01T12:36:22.018937+00:00 | Apache HTTPD Importer | Fixing | VCID-4sss-a8ne-kqbc | https://httpd.apache.org/security/json/CVE-2019-0197.json | 38.0.0 |
| 2026-04-01T12:36:22.000920+00:00 | Apache HTTPD Importer | Fixing | VCID-6vxq-uxxw-ybeh | https://httpd.apache.org/security/json/CVE-2019-0196.json | 38.0.0 |