Apache vulnerabilities
We track 1,499 vulnerabilities in Apache products across 60+ products. 1,499 are rated high or critical, and 46 have been exploited in real attacks. The most recent was published on November 13, 2026.
Latest Apache vulnerabilities
- 9.8 Critical severity
Apache DolphinScheduler: Incorrect Default Permissions
Incorrect Default Permissions vulnerability in Apache DolphinScheduler. This issue affects Apache DolphinScheduler: before 3.2.2. Users are recommended to upgrade to version 3.3.1, which fixes the issue.
- 8.8 High severity
Improper Input Validation vulnerability in Apache DolphinScheduler.
Improper Input Validation vulnerability in Apache DolphinScheduler. An authenticated user can execute any shell script server by alert script. This issue affects Apache DolphinScheduler: before 3.2.2. Users are recommended to upgrade to version 3.3.1, which fi
- 8.8 High severity
Apache Cassandra: Privilege Defined With Unsafe Actions
Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data M
- 7.5 High severity
Apache Log4cxx: Improper Output Neutralization for Logs
Improper Output Neutralization for Logs vulnerability in Apache Log4cxx. When using JSONLayout, not all payload bytes are properly escaped. If an attacker-supplied message contains certain non-printable characters, these will be passed along in the message and
- 7.6 High severity
Apache StreamPark: Improper Neutralization of Special Elements used in an SQL Command
SQL Injection vulnerability in Apache StreamPark. This issue affects Apache StreamPark: from 2.1.4 before 2.1.6. Users are recommended to upgrade to version 2.1.6, which fixes the issue. This vulnerability is present only in the distribution package (SpringBoo
- 8.4 High severity
Apache Tika PDF parser module: Improper Restriction of XML External Entity Reference
Critical XXE in Apache Tika (tika-parser-pdf-module) in Apache Tika 1.13 through and including 3.2.1 on all platforms allows an attacker to carry out XML External Entity injection via a crafted XFA file inside of a PDF. An attacker may be able to read sensitiv
- 8.8 High severity
Apache Commons OGNL: Improper Neutralization of Expression/Command Delimiters
** UNSUPPORTED WHEN ASSIGNED ** Improper Neutralization of Expression/Command Delimiters vulnerability in Apache Commons OGNL. This issue affects Apache Commons OGNL: all versions. When using the API Ognl.getValue, the OGNL engine parses and evaluates the pro
- 9.8 Critical severity
Apache OFBiz: Improper Control of Generation of Code
Improper Control of Generation of Code ('Code Injection') vulnerability leading to a possible RCE in Apache OFBiz scrum plugin. This issue affects Apache OFBiz: before 24.09.02 only when the scrum plugin is used. Even unauthenticated attackers can exploit this
- 7.5 High severity
Apache bRPC: Integer Overflow or Wraparound
Unlimited memory allocation in redis protocol parser in Apache bRPC (all versions < 1.14.1) on all platforms allows attackers to crash the service via network. Root Cause: In the bRPC Redis protocol parser code, memory for arrays or strings of corresponding si
- 7.5 High severity
Apache Tomcat: Improper Resource Shutdown or Release
Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older,
- 9.8 Critical severity
Apache Seata (incubating): Deserialization of Untrusted Data
Deserialization of Untrusted Data vulnerability in Apache Seata (incubating). This issue affects Apache Seata (incubating): 2.4.0. Users are recommended to upgrade to version 2.5.0, which fixes the issue.
- 9.8 Critical severity
If untrusted users are allowed to configure JMS for Apache CXF, previously they could use RMI…
If untrusted users are allowed to configure JMS for Apache CXF, previously they could use RMI or LDAP URLs, potentially leading to code execution capabilities. This interface is now restricted to reject those protocols, removing this possibility. Users are rec
- 7.5 High severity
Apache JSPWiki: Improper Neutralization of Input During Web Page Generation
A carefully crafted request when creating a header link using the wiki markup syntax, which could allow the attacker to execute javascript in the victim's browser and get some sensitive information about the victim. Further research by the JSPWiki team showed
- 8.8 High severity
File access paths in configuration files uploaded by users with administrator access are not…
File access paths in configuration files uploaded by users with administrator access are not validated. This issue affects Apache Jena version up to 5.4.0. Users are recommended to upgrade to version 5.5.0, which does not allow arbitrary configuration upload.
- 7.5 High severity
Apache Jena: Improper Limitation of a Pathname to a Restricted Directory
Users with administrator access can create databases files outside the files area of the Fuseki server. This issue affects Apache Jena version up to 5.4.0. Users are recommended to upgrade to version 5.5.0, which fixes the issue.
- 8.8 High severity
Apache Jackrabbit: Improper Restriction of XML External Entity Reference
Blind XXE Vulnerabilities in jackrabbit-spi-commons and jackrabbit-core in Apache Jackrabbit < 2.23.2 due to usage of an unsecured document build to load privileges. Users are recommended to upgrade to versions 2.20.17 (Java 8), 2.22.1 (Java 11) or 2.23.2 (Jav
- 7.5 High severity
Apache Zeppelin: Improper Control of a Resource Through its Lifetime
The attacker can use the raft server protocol in an unauthenticated way. The attacker can see the server's resources, including directories and files. This issue affects Apache Zeppelin: from 0.10.1 up to 0.12.0. Users are recommended to upgrade to version 0.1
- 7.5 High severity
Apache Tomcat: Uncontrolled Resource Consumption
Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.
- 7.5 High severity
Apache Tomcat: Integer Overflow or Wraparound
For some unlikely configurations of multipart upload, an Integer Overflow vulnerability in Apache Tomcat could lead to a DoS via bypassing of size limits. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0
- 7.5 High severity
Apache Tomcat: Concurrent Execution using Shared Resource with Improper Synchronization
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections. This issue affe
- 7.5 High severity
Apache HTTP Server: Missing Release of Memory after Effective Lifetime
Late Release of Memory after Effective Lifetime vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: from 2.4.17 up to 2.4.63. Users are recommended to upgrade to version 2.4.64, which fixes the issue.
- 7.4 High severity
Apache HTTP Server: Improper Authentication
In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upgr
- 7.5 High severity
Apache HTTP Server: Reachable Assertion
In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in mod_proxy_http2. Configurations affected are a reverse proxy is configured fo
- 9.1 Critical severity
Apache HTTP Server: Improper Access Control
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption. Configurations are affected when mod_ssl is configured for multiple virtual hosts, with eac
- 7.5 High severity
Apache HTTP Server: Improper Neutralization of Escape, Meta, or Control Sequences
Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations. In a logging configuration where CustomLog is used with "%{var
- 7.5 High severity
Apache HTTP Server: Server-Side Request Forgery
Server-Side Request Forgery (SSRF) in Apache HTTP Server on Windows allows to potentially leak NTLM hashes to a malicious server via mod_rewrite or apache expressions that pass unvalidated request input. This issue affects Apache HTTP Server: from 2.4.0 throug
- 7.5 High severity
Apache HTTP Server: Server-Side Request Forgery
SSRF in Apache HTTP Server with mod_proxy loaded allows an attacker to send outbound proxy requests to a URL controlled by the attacker. Requires an unlikely configuration where mod_headers is configured to modify the Content-Type request or response header wi
- 7.5 High severity
HTTP response splitting in the core of Apache HTTP Server allows an attacker who can…
HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response. This vulnerability was described as CVE-2023-38709 bu
- 7.8 High severity
Apache APISIX Java Plugin Runner: Incorrect Permission Assignment for Critical Resource
Incorrect Permission Assignment for Critical Resource vulnerability in Apache APISIX(java-plugin-runner). Local listening file permissions in APISIX plugin runner allow a local attacker to elevate privileges. This issue affects Apache APISIX(java-plugin-runner
- 7.5 High severity
Apache Guacamole: Improper Validation of Array Index
The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console codes received from servers via text-based protocols like SSH. If a malicious user has access to a text-based connection, a specially-crafted sequence of console codes
- 9.8 Critical severity
Apache Seata (incubating): Deserialization of Untrusted Data
Deserialization of Untrusted Data vulnerability in Apache Seata (incubating). This security vulnerability is the same as CVE-2024-47552, but the version range described in the CVE-2024-47552 definition is too narrow. This issue affects Apache Seata (incubating
- 9.8 Critical severity
Apache Airflow Providers Snowflake: Failure to Sanitize Special Elements into a Different Plane
Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) vulnerability in Apache Airflow Providers Snowflake. This issue affects Apache Airflow Providers Snowflake: before 6.4.0. Sanitation of table and stage parameters were adde
- 7.5 High severity
Apache Traffic Server: Uncontrolled Resource Consumption
ESI plugin does not have the limit for maximum inclusion depth, and that allows excessive memory consumption if malicious instructions are inserted. Users can use a new setting for the plugin (--max-inclusion-depth) to limit it. This issue affects Apache Traff
- 7.5 High severity
Apache Traffic Server: Improper Access Control
ACL configured in ip_allow.config or remap.config does not use IP addresses that are provided by PROXY protocol. Users can use a new setting (proxy.config.acl.subjects) to choose which IP addresses to use for the ACL if Apache Traffic Server is configured to a
- 7.5 High severity
Apache Tomcat: Authentication Bypass Using an Alternate Path or Channel
Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat. When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path
- 8.4 High severity
Apache Tomcat: Untrusted Search Path
Untrusted Search Path vulnerability in Apache Tomcat installer for Windows. During installation, the Tomcat installer for Windows used icacls.exe without specifying a full path. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0 throu
- 7.5 High severity
Apache Tomcat: Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105. The following versions were EOL at the time the
- 7.5 High severity
Apache Commons FileUpload: Allocation of Resources Without Limits or Throttling
Allocation of resources for multipart headers with insufficient limits enabled a DoS vulnerability in Apache Commons FileUpload. This issue affects Apache Commons FileUpload: from 1.0 before 1.6; from 2.0.0-M1 before 2.0.0-M4. Users are recommended to upgrade
- 9.8 Critical severity
Apache NuttX RTOS: Improper Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability was discovered in Apache NuttX RTOS apps/exapmles/xmlrpc application. In this example application device stats structure that stored remotely provided parameters had hardcode
- 9.8 Critical severity
Apache NuttX RTOS: tools/bdf-converter.: Heap-based Buffer Overflow
Out-of-bounds Write resulting in possible Heap-based Buffer Overflow vulnerability was discovered in tools/bdf-converter font conversion utility that is part of Apache NuttX RTOS repository. This standalone program is optional and neither part of NuttX RTOS no