Vulnerabilities (CVE)

Filtered by vendor Apache Subscribe
Total 3152 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-23901 2 Apache, Netapp 2 Nutch, Snap Creator Framework 2026-06-17 6.4 MEDIUM 9.1 CRITICAL
An XML external entity (XXE) injection vulnerability was discovered in the Nutch DmozParser and is known to affect Nutch versions < 1.18. XML external entity injection (also known as XXE) is a web security vulnerability that allows an attacker to interfere with an application's processing of XML data. It often allows an attacker to view files on the application server filesystem, and to interact with any back-end or external systems that the application itself can access. This issue is fixed in Apache Nutch 1.18.
CVE-2021-22696 2 Apache, Oracle 6 Cxf, Business Intelligence, Communications Diameter Intelligence Hub and 3 more 2026-06-17 5.0 MEDIUM 7.5 HIGH
CXF supports (via JwtRequestCodeFilter) passing OAuth 2 parameters via a JWT token as opposed to query parameters (see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request (JAR)). Instead of sending a JWT token as a "request" parameter, the spec also supports specifying a URI from which to retrieve a JWT token from via the "request_uri" parameter. CXF was not validating the "request_uri" parameter (apart from ensuring it uses "https) and was making a REST request to the parameter in the request to retrieve a token. This means that CXF was vulnerable to DDos attacks on the authorization server, as specified in section 10.4.1 of the spec. This issue affects Apache CXF versions prior to 3.4.3; Apache CXF versions prior to 3.3.10.
CVE-2021-22160 1 Apache 1 Pulsar 2026-06-17 7.5 HIGH 9.8 CRITICAL
If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to "none". This allows an attacker to connect to Pulsar instances as any user (incl. admins).
CVE-2021-21501 1 Apache 1 Servicecomb 2026-06-17 5.0 MEDIUM 7.5 HIGH
Improper configuration will cause ServiceComb ServiceCenter Directory Traversal problem in ServcieCenter 1.x.x versions and fixed in 2.0.0.
CVE-2021-21351 6 Apache, Debian, Fedoraproject and 3 more 16 Activemq, Jmeter, Debian Linux and 13 more 2026-06-17 6.5 MEDIUM 5.4 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21350 6 Apache, Debian, Fedoraproject and 3 more 16 Activemq, Jmeter, Debian Linux and 13 more 2026-06-17 7.5 HIGH 5.3 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to execute arbitrary code only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21349 6 Apache, Debian, Fedoraproject and 3 more 17 Activemq, Jmeter, Debian Linux and 14 more 2026-06-17 5.0 MEDIUM 6.1 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21348 6 Apache, Debian, Fedoraproject and 3 more 16 Activemq, Jmeter, Debian Linux and 13 more 2026-06-17 7.8 HIGH 5.3 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to occupy a thread that consumes maximum CPU time and will never return. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21347 6 Apache, Debian, Fedoraproject and 3 more 16 Activemq, Jmeter, Debian Linux and 13 more 2026-06-17 7.5 HIGH 6.1 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21346 6 Apache, Debian, Fedoraproject and 3 more 16 Activemq, Jmeter, Debian Linux and 13 more 2026-06-17 7.5 HIGH 6.1 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21345 6 Apache, Debian, Fedoraproject and 3 more 16 Activemq, Jmeter, Debian Linux and 13 more 2026-06-17 6.5 MEDIUM 5.8 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker who has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21344 6 Apache, Debian, Fedoraproject and 3 more 16 Activemq, Jmeter, Debian Linux and 13 more 2026-06-17 7.5 HIGH 5.3 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21343 6 Apache, Debian, Fedoraproject and 3 more 15 Activemq, Jmeter, Debian Linux and 12 more 2026-06-17 5.0 MEDIUM 5.3 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in the deletion of a file on the local host. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21342 6 Apache, Debian, Fedoraproject and 3 more 15 Activemq, Jmeter, Debian Linux and 12 more 2026-06-17 5.8 MEDIUM 5.3 MEDIUM
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability where the processed stream at unmarshalling time contains type information to recreate the formerly written objects. XStream creates therefore new instances based on these type information. An attacker can manipulate the processed input stream and replace or inject objects, that result in a server-side forgery request. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21341 6 Apache, Debian, Fedoraproject and 3 more 13 Activemq, Jmeter, Debian Linux and 10 more 2026-06-17 7.1 HIGH 7.5 HIGH
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
CVE-2021-21315 2 Apache, Systeminformation 2 Cordova, Systeminformation 2026-06-17 4.6 MEDIUM 7.1 HIGH
The System Information Library for Node.JS (npm package "systeminformation") is an open source collection of functions to retrieve detailed hardware, system and OS information. In systeminformation before version 5.3.1 there is a command injection vulnerability. Problem was fixed in version 5.3.1. As a workaround instead of upgrading, be sure to check or sanitize service parameters that are passed to si.inetLatency(), si.inetChecksite(), si.services(), si.processLoad() ... do only allow strings, reject any arrays. String sanitation works as expected.
CVE-2021-21295 6 Apache, Debian, Netapp and 3 more 8 Kudu, Zookeeper, Debian Linux and 5 more 2026-06-17 2.6 LOW 5.9 MEDIUM
Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by `Http2MultiplexHandler` as it is propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`, `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy case, users may assume the content-length is validated somehow, which is not the case. If the request is forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind `Http2StreamFrameToHttpObjectCodec`.
CVE-2020-9498 3 Apache, Debian, Fedoraproject 3 Guacamole, Debian Linux, Fedora 2026-06-17 6.2 MEDIUM 6.7 MEDIUM
Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.
CVE-2020-9497 3 Apache, Debian, Fedoraproject 3 Guacamole, Debian Linux, Fedora 2026-06-17 1.2 LOW 4.4 MEDIUM
Apache Guacamole 1.1.0 and older do not properly validate datareceived from RDP servers via static virtual channels. If a userconnects to a malicious or compromised RDP server, specially-craftedPDUs could result in disclosure of information within the memory ofthe guacd process handling the connection.
CVE-2020-9496 1 Apache 1 Ofbiz 2026-06-17 4.3 MEDIUM 6.1 MEDIUM
XML-RPC request are vulnerable to unsafe deserialization and Cross-Site Scripting issues in Apache OFBiz 17.12.03