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 Qpid ProtonJ2: Uncontrolled Recursion
A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.
- 7.5 High severity
Apache Qpid Proton Dotnet: Uncontrolled Recursion
A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service. This issue affects Apache Qpid Proton-Dotnet through 1.0.0. Users are recommended to upgrade to version 1.1.0, which fixes the iss
- 7.5 High severity
Apache Qpid Proton-J: Uncontrolled Recursion
A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue
- 7.5 High severity
Apache Qpid Broker-J: Allocation of Resources Without Limits or Throttling
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid Broker-J: through 10.0.1. Users are recommended to upgrade to version 10.1.0, which fixes the
- 7.5 High severity
Apache Qpid Broker-J: Allocation of Resources Without Limits or Throttling
A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Broker-J: through 10.0.1. Users are recommended to upgrade to version 10.1.0, which fixes
- 7.5 High severity
Apache Qpid ProtonJ2: Memory Allocation with Excessive Size Value
A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes t
- 7.5 High severity
Apache Qpid ProtonJ2: Allocation of Resources Without Limits or Throttling
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the is
- 7.5 High severity
Apache Qpid Proton Dotnet: Memory Allocation with Excessive Size Value
pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-Dotnet: through 1.0.0. Users are recommended to upgrade to version 1.1.0, which fixe
- 7.5 High severity
Apache Qpid Proton Dotnet: Allocation of Resources Without Limits or Throttling
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid Proton-Dotnet: through 1.0.0. Users are recommended to upgrade to version 1.1.0, which fixes t
- 7.5 High severity
Apache Qpid Proton-J: Memory Allocation with Excessive Size Value
A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes
- 7.5 High severity
Apache Qpid Proton-J: Allocation of Resources Without Limits or Throttling
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the
- 7.5 High severity
Apache NiFi: Improper Handling of Highly Compressed Data (Data Amplification)
Apache NiFi 1.5.0 through 2.10.0 support gzip-encoded HTTP requests for the application REST API using a Jersey encoding filter. The framework enforced a configurable maximum request size on the compressed payload rather than the decompressed output, allowing
- 9.1 Critical severity
Apache NiFi: Incorrect Authorization
Apache NiFi 2.0.0 through 2.10.0 support creating, reading, and deleting Assets associated with Parameter Contexts through the REST API. The framework authorizes asset deletion against the owning Parameter Context using the supplied Parameter Context Identifie
- 9.8 Critical severity
Apache NiFi: Missing Authorization
Apache NiFI 1.10.0 through 2.10.0 provide a Parameter Context update REST API method that does not enforce authorization checking on components referencing Parameter values. Updating a Parameter Context can change parameter values that affect referencing compo
- 7.5 High severity
Apache Jena Fuseki: Improper Limitation of a Pathname to a Restricted Directory
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache Jena Fuseki. This issue affects Apache Jena Fuseki: through 6.1.0. Users are recommended to upgrade to version 6.2.0, which fixes the issue.
- 8.1 High severity
Apache Kyuubi: Improper Limitation of a Pathname to a Restricted Directory
The security fix for CVE-2025-66518 is incomplete. Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allowlist via unprefixed Spark config aliases. This issue affects Apache K
- 9.8 Critical severity
Apache Tika: Improper Protection of Alternate Path
Improper Protection of Alternate Path vulnerability in Apache Tika. This issue affects Apache Tika: from 4.0.0-alpha-1 before 4.0.0-beta-1. Users are recommended to upgrade to version 4.0.0-beta-1, which fixes the issue.
- 7.5 High severity
Apache Tika: Improper Limitation of a Pathname to a Restricted Directory
Relative Path Traversal in the ISA-Tab parser in Apache Software Foundation Apache Tika from 1.8 through 3.3.1, and 4.0.0-alpha-1, allows an attacker who can place files in a directory that the application subsequently parses to read arbitrary files accessible
- 9.8 Critical severity
Apache Kyuubi: Improper Limitation of a Pathname to a Restricted Directory
Apache Kyuubi REST batch multipart upload handling uses the client-supplied multipart filename when creating a temporary uploaded resource. A remote attacker who can access the REST batch upload endpoint can provide path traversal sequences in the filename and
- 7.5 High severity
Apache JSPWiki: Missing Authentication for Critical Functionality
Arbitrary Wiki Markup rendering due to lack of authentication in Apache JSPWiki up to 2.12.3 allows attacker to obtain sensitive data stored in JSPWiki variables. Users are recommended to upgrade to version 2.12.4 or 3.0.0, which fixes this issue.
- 8.8 High severity
Apache JSPWiki: Cross-Site Request Forgery
Apache JSPWiki, up to 2.12.3, is vulnerable to JSON Hijacking, which leads to csrf vulnerabilities. Users are recommended to upgrade to version 2.12.4, which fixes this issue.
- 9.8 Critical severity
Apache JSPWiki: Authentication Bypass by Spoofing
UserManager lack of checks allows impersonation in Apache JSPWiki up to 2.12.3 which may allow attackers to escalate privileges. Users are recommended to upgrade to version 2.12.4 or newer which fixes this issue.
- 7.5 High severity
Apache JSPWiki: Debug Messages Revealing Unnecessary Information
Debug Messages Revealing Unnecessary Information in Apache JSPWiki up to 2.12.3. Users are recommended to upgrade to version 2.12.4, which fixes this issue.
- 9.8 Critical severity
Apache Airflow FAB provider: Improper Verification of Cryptographic Signature
The FAB auth manager's Azure AD OAuth login defaulted `verify_signature=False` when decoding the ID token, so an attacker able to present a forged or unsigned (`alg:none`) ID token to the OAuth callback could bypass authentication and log in as an arbitrary us
- 7.5 High severity
Apache Traffic Server: Server-Side Request Forgery
Apache Traffic Server allows redirect-limit bypass when plugins reset the retry counter, enabling SSRF amplification. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommen
- 8.2 High severity
Apache Traffic Server: Out-of-bounds Write
Several Apache Traffic Server experimental plugins have memory-safety and limit-bypass errors. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to versi
- 7.5 High severity
Apache Traffic Server: Out-of-bounds Write
The Apache Traffic Server multiplexer plugin overruns its chunk-decode buffer on upstream input, enabling denial of service. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are r
- 7.5 High severity
The Apache Traffic Server webp_transform plugin can decode unsafely and serve mislabeled…
The Apache Traffic Server webp_transform plugin can decode unsafely and serve mislabeled, cacheable responses. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to
- 9.8 Critical severity
Apache Traffic Server: Use After Free
The Apache Traffic Server intercept plugin has a use-after-free. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix
- 7.5 High severity
Apache Traffic Server: Out-of-bounds Write
The Apache Traffic Server header_rewrite plugin can crash or corrupt memory during cookie operations and CIDR condition matching. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users
- 7.5 High severity
The Apache Traffic Server prefetch plugin can crash when processing attacker-influenced input.
The Apache Traffic Server prefetch plugin can crash when processing attacker-influenced input. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to versi
- 8.6 High severity
Apache Traffic Server: Uncontrolled Resource Consumption
The Apache Traffic Server ts_lua plugin mishandles initialization, transform context, and per-instance state. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to u
- 7.5 High severity
Apache Traffic Server: Stack-based Buffer Overflow
The Apache Traffic Server uri_signing and url_sig plugins can exhaust the stack or crash on attacker input. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upg
- 7.5 High severity
Apache Traffic Server: Stack-based Buffer Overflow
The Apache Traffic Server txn_box plugin overflows the stack from attacker-controlled input. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version
- 9.8 Critical severity
Apache Traffic Server: Stack-based Buffer Overflow
The Apache Traffic Server regex_remap plugin overflows the stack and integers from substitution input. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade
- 7.5 High severity
Apache Traffic Server: Uncontrolled Recursion
The Apache Traffic Server ESI plugin can recurse without bound and fetch attacker-controlled URLs. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to v
- 9.8 Critical severity
Apache Traffic Server: Out-of-bounds Write
The Apache Traffic Server Cripts framework has out-of-bounds writes, path traversal, and use-after-free errors. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 10.1.4, which fix the issue.
- 7.5 High severity
Apache Traffic Server: Missing Release of Memory after Effective Lifetime
Apache Traffic Server leaks memory when handling HostDB SRV records. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which
- 7.5 High severity
Apache Traffic Server: Use After Free
Apache Traffic Server has use-after-free and time-of-check/time-of-use errors in remap configuration handling. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to
- 9.1 Critical severity
Apache Traffic Server: Deserialization of Untrusted Data
Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgra