Total
36 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2019-9513 | 12 Apache, Apple, Canonical and 9 more | 22 Traffic Server, Mac Os X, Swiftnio and 19 more | 2026-06-17 | 7.8 HIGH | 7.5 HIGH |
| Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU. | |||||
| CVE-2019-9511 | 12 Apache, Apple, Canonical and 9 more | 22 Traffic Server, Mac Os X, Swiftnio and 19 more | 2026-06-17 | 7.8 HIGH | 7.5 HIGH |
| Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both. | |||||
| CVE-2019-0211 | 8 Apache, Canonical, Debian and 5 more | 27 Http Server, Ubuntu Linux, Debian Linux and 24 more | 2026-06-17 | 7.2 HIGH | 7.8 HIGH |
| 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-2019-0197 | 6 Apache, Canonical, Fedoraproject and 3 more | 12 Http Server, Ubuntu Linux, Fedora and 9 more | 2026-06-17 | 4.9 MEDIUM | 4.2 MEDIUM |
| A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. 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. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue. | |||||
| CVE-2018-1333 | 4 Apache, Canonical, Netapp and 1 more | 6 Http Server, Ubuntu Linux, Cloud Backup and 3 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service. Fixed in Apache HTTP Server 2.4.34 (Affected 2.4.18-2.4.30,2.4.33). | |||||
| CVE-2018-1312 | 5 Apache, Canonical, Debian and 2 more | 14 Http Server, Ubuntu Linux, Debian Linux and 11 more | 2026-06-17 | 6.8 MEDIUM | 9.8 CRITICAL |
| 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 could be replayed across servers by an attacker without detection. | |||||
| CVE-2018-17189 | 7 Apache, Canonical, Debian and 4 more | 13 Http Server, Ubuntu Linux, Debian Linux and 10 more | 2026-06-17 | 5.0 MEDIUM | 5.3 MEDIUM |
| In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections. | |||||
| CVE-2018-11759 | 3 Apache, Debian, Redhat | 3 Tomcat Jk Connector, Debian Linux, Jboss Core Services | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| 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 via httpd, then it was possible for a specially constructed request to expose application functionality through the reverse proxy that was not intended for clients accessing the application via the reverse proxy. It was also possible in some configurations for a specially constructed request to bypass the access controls configured in httpd. While there is some overlap between this issue and CVE-2018-1323, they are not identical. | |||||
| CVE-2017-9788 | 6 Apache, Apple, Debian and 3 more | 16 Http Server, Mac Os X, Debian Linux and 13 more | 2026-06-17 | 6.4 MEDIUM | 9.1 CRITICAL |
| 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 could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service. | |||||
| CVE-2017-3167 | 6 Apache, Apple, Debian and 3 more | 15 Http Server, Mac Os X, Debian Linux and 12 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| 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-2017-12613 | 3 Apache, Debian, Redhat | 11 Portable Runtime, Debian Linux, Enterprise Linux Desktop and 8 more | 2026-06-17 | 3.6 LOW | 7.1 HIGH |
| When apr_time_exp*() or apr_os_exp_time*() functions are invoked with an invalid month field value in Apache Portable Runtime APR 1.6.2 and prior, out of bounds memory may be accessed in converting this value to an apr_time_exp_t value, potentially revealing the contents of a different static heap value or resulting in program termination, and may represent an information disclosure or denial of service vulnerability to applications which call these APR functions with unvalidated external input. | |||||
| CVE-2016-9598 | 2 Redhat, Xmlsoft | 2 Jboss Core Services, Libxml2 | 2026-06-17 | 4.3 MEDIUM | 6.5 MEDIUM |
| libxml2, as used in Red Hat JBoss Core Services, allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted XML document. NOTE: this vulnerability exists because of a missing fix for CVE-2016-4483. | |||||
| CVE-2016-9596 | 2 Redhat, Xmlsoft | 2 Jboss Core Services, Libxml2 | 2026-06-17 | 4.3 MEDIUM | 6.5 MEDIUM |
| libxml2, as used in Red Hat JBoss Core Services and when in recovery mode, allows context-dependent attackers to cause a denial of service (stack consumption) via a crafted XML document. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-3627. | |||||
| CVE-2016-8743 | 4 Apache, Debian, Netapp and 1 more | 12 Http Server, Debian Linux, Clustered Data Ontap and 9 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in the whitespace accepted from requests and sent in response lines and headers. Accepting these different behaviors represented a security concern when httpd participates in any chain of proxies or interacts with back-end application servers, either through mod_proxy or using conventional CGI mechanisms, and may result in request smuggling, response splitting and cache pollution. | |||||
| CVE-2016-5387 | 8 Apache, Canonical, Debian and 5 more | 21 Http Server, Ubuntu Linux, Debian Linux and 18 more | 2026-06-17 | 6.8 MEDIUM | 8.1 HIGH |
| The Apache HTTP Server through 2.4.23 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. NOTE: the vendor states "This mitigation has been assigned the identifier CVE-2016-5387"; in other words, this is not a CVE ID for a vulnerability. | |||||
| CVE-2016-3627 | 7 Canonical, Debian, Hp and 4 more | 14 Ubuntu Linux, Debian Linux, Icewall Federation Agent and 11 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| The xmlStringGetNodeList function in tree.c in libxml2 2.9.3 and earlier, when used in recovery mode, allows context-dependent attackers to cause a denial of service (infinite recursion, stack consumption, and application crash) via a crafted XML document. | |||||