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
- 7.5 High severity
Apache bRPC: Out-of-bounds Read
Integer underflow and out-of-bounds read in the HTTP/2 server DATA frame parser in Apache bRPC allows an unauthenticated remote attacker to cause denial of service by sending a malformed DATA frame with the PADDED flag set and a zero-length payload. Root Cause
- 7.5 High severity
Apache bRPC: Uncontrolled Recursion
Uncontrolled recursion in the AMF parser in Apache bRPC < 1.18.0 allows a remote RTMP peer to crash a bRPC process by sending deeply nested AMF objects or arrays. The parser recursively processed nested AMF containers without enforcing a depth limit, which cou
- 7.5 High severity
Apache bRPC: Uncontrolled Recursion
Uncontrolled recursion in the Redis reply parser in Apache bRPC < 1.18.0 allows a remote Redis server peer to crash a bRPC Redis client process by returning a deeply nested RESP array reply. The parser recursed once for each nested array level without enforcin
- 7.5 High severity
Apache bRPC: Uncontrolled Recursion
Uncontrolled recursion in the HTTP/2 HPACK decoder in Apache bRPC before 1.18.0 allows remote attackers to cause denial of service by sending a crafted HTTP/2 header block containing many consecutive Dynamic Table Size Update entries. Each update was decoded b
- 9.1 Critical severity
Apache bRPC: Improper Authentication
Improper authentication in Apache bRPC through 1.17.0 allows a remote unauthenticated attacker to bypass authentication for protected non-builtin HTTP endpoints by first sending a builtin HTTP request on the same HTTP/1.1 keep-alive connection. When ServerOpti
- 9.8 Critical severity
Apache IoTDB: Improper Authentication
An authentication bypass vulnerability exists in Apache IoTDB's Thrift RPC service This issue affects Apache IoTDB: from 2.0.0 before 2.0.11. Users are recommended to upgrade to version 2.0.11, which fixes the issue.
- 7.5 High severity
Apache IoTDB JDBC driver: Uncontrolled Resource Consumption
Uncontrolled Resource Consumption vulnerability in Apache IoTDB JDBC driver. This issue affects Apache IoTDB JDBC driver: from 1.3.3 before 2.0.11. Users are recommended to upgrade to version 2.0.11, which fixes the issue.
- 8.1 High severity
Apache CouchDB: Missing Authorization
Missing authorisation checks in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows any request to read the full contents of a prefixed _user or _replicator database via an unauthorised API endpoint. The use of prefixed system databases is very ra
- 7.7 High severity
Apache CouchDB: Improper Handling of Highly Compressed Data (Data Amplification)
An unlimited gzip decompression routine in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows any remote client to cause a denial of service via memory exhaustion. Users are recommended to upgrade to version 3.5.3, which fixes this issue.
- 9.3 Critical severity
Apache CouchDB: Improper Neutralization of Special Elements used in an OS Command
An unvalidated runtime configuration value in Apache CouchDB 3.5.2 and below on all platforms allows a CouchDB server admin to run arbitrary shell commands as the CouchDB operating system user. Users are recommended to upgrade to version 3.5.3, which fixes thi
- 7.5 High severity
Apache Tomcat: Incomplete Cleanup
Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently. This issue affects Apache Tomcat: from 11.0.0-M21 through 11.0.26, from 10.1.25 through 10.1.60, from 9.0.90 through 9.0.122. Users are recommended to upg
- 7.5 High severity
Apache Tomcat: Incomplete Cleanup
Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request. This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0
- 8.1 High severity
Apache Tomcat: Time-of-check Time-of-use (TOCTOU) Race Condition
Time-of-check time-of-use (TOCTOU) race condition vulnerability in Apache Tomcat when creating unix domain sockets for the APR/Native connector allows an unauthorised local user to access the unix domain socket. The fix for CVE-2026-65183 only addressed the NI
- 9.1 Critical severity
Apache Tomcat: Buffer Under-read
Buffer under-read vulnerability in Apache Tomcat meant that a large non-blocking write could result in the response body being split between the current request and the next request received on that connection leading most likely to failure of the second reque
- 9.1 Critical severity
Apache Tomcat: Concurrent Execution using Shared Resource with Improper Synchronization
Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users. This issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 thr
- 8.1 High severity
Apache Tomcat: Missing Critical Step in Authentication
A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with a non GSSAPI SASL authentication mechanism allowed attackers to authenticate without providing the correct password. This issue affects Apache
- 7.5 High severity
Apache Cocoon: Exposure of Sensitive System Information to an Unauthorized Control Sphere
** UNSUPPORTED WHEN ASSIGNED ** Exposure of sensitive system information to an unauthorized control sphere vulnerability in Apache Cocoon. An unauthenticated user could gain access to diagnostic interfaces, including triggering of cache, exposure of (verbose)
- 7.5 High severity
Apache Cocoon: Use of Cache Containing Sensitive Information
** UNSUPPORTED WHEN ASSIGNED ** Use of cache containing sensitive information vulnerability in Apache Cocoon. When using the cache on a multi-user application, cached values for one user could be used when serving content for other users. This issue affects Ap
- 8.8 High severity
Apache Cocoon: Improper Neutralization of Special Elements used in an SQL Command
** UNSUPPORTED WHEN ASSIGNED ** Improper neutralization of special elements used in an SQL command ('SQL injection') vulnerability in Apache Cocoon. This issue affects Apache Cocoon: all versions. Missing input sanitation would allow arbitrary SQL injection th
- 7.5 High severity
Apache Cocoon: Improper Restriction of Recursive Entity References in DTDs
** UNSUPPORTED WHEN ASSIGNED ** Improper restriction of recursive entity references in DTDs ('XML entity expansion') vulnerability in Apache Cocoon. This issue affects Apache Cocoon: all versions. XEE in the fp: form processor could lead to SSRF, including exp
- 8.1 High severity
Pass-through of unvalidated KMS URLs to KMS clients in Apache C++ Parquet and PyArrow versions…
Pass-through of unvalidated KMS URLs to KMS clients in Apache C++ Parquet and PyArrow versions 4.0.0 to 25.0.1. This affects users who read Parquet files and configure Parquet decryption properties with a KmsClient implementation. On the reader side, the KMS U
- 8.8 High severity
Apache Airflow Amazon provider: Cross-Site Request Forgery
Apache Airflow Amazon provider: the AWS auth manager's SAML login flow does not bind the authentication response to the browser that began it. The login handler discards the AuthnRequest ID and the callback validates the assertion without requiring a matching
- 8.8 High severity
Apache Camel: Deserialization of Untrusted Data
Deserialization of Untrusted Data vulnerability in Apache Camel Camel-Jgroups component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. JGroupsEndpoint.createExchange(Message), which CamelJGroupsReceiver calls for every m
- 8.2 High severity
Apache Camel: Improper Restriction of XML External Entity Reference
Improper Restriction of XML External Entity Reference vulnerability in Apache Camel. This issue affects Apache Camel: from 4.7.0 before 4.18.5, from 4.19.0 before 4.22.1. Improper Restriction of XML External Entity Reference in the Smooks component (camel-smoo
- 7.5 High severity
Apache Camel: Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Camel HTTP component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. Two paths handed credentials to a redirect target, which is a host ch
- 7.5 High severity
Apache Camel: Improper Restriction of XML External Entity Reference
Improper Restriction of XML External Entity Reference vulnerability in Apache Camel XPath component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. With documentType set to InputSource, XPathBuilder handed the payload str
- 8.8 High severity
Apache Camel: Improper Control of Generation of Code
Improper Control of Generation of Code ('Code Injection'), Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') vulnerability in Apache Camel. This issue affects Apache Camel: from 4.4.0 before
- 8.2 High severity
Apache Camel: Server-Side Request Forgery
Server-Side Request Forgery (SSRF) vulnerability in Apache Camel AS2 component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. In the AS2 protocol the sender of a message may request that the Message Disposition Notificat
- 8.2 High severity
Apache Camel: Improper Handling of Case Sensitivity
Improper Handling of Case Sensitivity vulnerability in Apache Camel Netty HTTP component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. The camel-netty-http security constraint compared the request path against the confi
- 8.2 High severity
Apache Camel: Improper Authentication
Improper Authentication vulnerability in Apache Camel OAuth component. This issue affects Apache Camel: from 4.11.0 before 4.18.5, from 4.19.0 before 4.22.1. The camel-oauth processors that guard a route did not stop the exchange when authentication could not
- 9.1 Critical severity
Apache Camel: Improper Limitation of a Pathname to a Restricted Directory
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Camel Azure Files component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. The Camel remote-file consumers poll a dir
- 7.4 High severity
Apache Camel: Improper Limitation of a Pathname to a Restricted Directory
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Camel SMB component. This issue affects Apache Camel: from 4.2.0 before 4.18.5, from 4.19.0 before 4.22.1. The Camel remote-file consumers poll a directory o
- 7.4 High severity
Apache Camel: Improper Limitation of a Pathname to a Restricted Directory
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Camel Mina SFTP component. This issue affects Apache Camel: from 4.18.0 before 4.18.5, from 4.19.0 before 4.22.1. The Camel remote-file consumers poll a dire
- 9.1 Critical severity
Apache Camel: Improper Limitation of a Pathname to a Restricted Directory
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Camel FTP component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. The Camel remote-file consumers poll a directory o
- 8.8 High severity
Apache Camel: Deserialization of Untrusted Data
Deserialization of Untrusted Data vulnerability in Apache Camel Spring Redis component. This issue affects Apache Camel: from 2.11.0 before 4.18.5, from 4.19.0 before 4.22.1. RedisConfiguration.getSerializer lazily built a bare JdkSerializationRedisSerializer
- 8.2 High severity
Apache Camel: Exposure of Sensitive Information to an Unauthorized Actor
Improper Neutralization of Special Elements Used in a Template Engine and Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Camel HTTP, Netty HTTP, Undertow and Vert.x HTTP components. This issue affects Apache Camel: from 4.0.
- 9.8 Critical severity
Apache Camel: Deserialization of Untrusted Data
Deserialization of Untrusted Data vulnerability in Apache Camel. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. The camel-hazelcast component applies a default Hazelcast JavaSerializationFilterConfig to the instances it c
- 9.8 Critical severity
Apache Johnzon: Use of Externally-Controlled Input to Select Classes or Code
Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Johnzon. ClassConverter loads & static-initializes an attacker-named class from untrusted JSON. This issue affects Apache Johnzon: from 1.0.0 before 2.2.
- 9.8 Critical severity
Apache Answer: Missing Authentication for Critical Functionality
Missing authentication for critical function vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. The reaction API did not enforce content visibility controls, allowing unauthorized users to read reaction metadata from restricted co
- 8.1 High severity
Apache Answer: Exposure of Sensitive Information Through Data Queries
vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. Missing authorization checks allowed authenticated users to perform actions on non-public content they were not permitted to access. Users are recommended to upgrade to version 2.