apache has 468 CVEs on record. Disclosure cadence is accelerating: 181 in the last 90 days against 114 in the 90 before. The busiest recent month was September 2026 with 83. The median CVSS is 7.5 (high), with 81 rated critical. 2% have been exploited in the wild, in line with the corpus average. The median gap from publication to a KEV listing is 1186 days (8 cases). The dominant weakness classes are CWE-502 (28) and CWE-20 (26). Most affected products: tomcat (75), traffic_server (31), airflow (29).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 2% vs 1% corpus
- Median CVSS
- 7.5
- Publish → KEV
- 1186 d median(8)
- Last 90 days
- 181 prev 114
Weakness classes
Products
- tomcat 75
- traffic_server 31
- airflow 29
- http_server 28
- cloudstack 25
- ofbiz 17
Worst active — by depth score
CVE-2021-44228Critical· 10.0Log4Shell: JNDI RCE in Apache Log4j 2100CVE-2021-45046Critical· 9.0Incomplete fix for Apache Log4j vulnerability99CVE-2020-1938Critical· 9.8When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat99CVE-2016-8735Critical· 9.8Remote code execution is possible with Apache Tomcat before 6.0.48, 7.x before 7.0.73, 8.x before 8.0.39, 8.5.x before 8.5.7, and 9.x before 9.0.0.M12 if JmxRemoteLifecycleListener is used and an attacker can reach JMX ports97CVE-2017-12615High· 8.1When running Apache Tomcat 7.0.0 to 7.0.79 on Windows with HTTP PUTs enabled (e.g94
apache vulnerabilities
CVEs affecting apache, newest first. Open any entry for full detail, references, and exploit status.
468 CVEsRSS
CVE-2026-92573Medium· 6.5Improper handling of compressed data in the shared GZIP decompressor used for AMQP 0-8/0-9/0-9-1 and AMQP 0-10 message delivery, message conversion and HTTP management JSON rendering allows authenticated message producers to exhaust memo…
Improper handling of compressed data in the shared GZIP decompressor used for AMQP 0-8/0-9/0-9-1 and AMQP 0-10 message delivery, message conversion and HTTP management JSON rendering allows authenticated message producers to exhaust memo…
CVE-2026-92564High· 7.5A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service. This issue affects Apache Qpid Broker-J: through 10.1.0. Users are recommended to upgrade to version 10.1…
A pre-authentication attacker could leverage type nesting to cause a StackOverflowError potentially leading to denial of service. This issue affects Apache Qpid Broker-J: through 10.1.0. Users are recommended to upgrade to version 10.1…
CVE-2026-92560High· 7.5A 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 10.1.0. Users are recommended to upgrade to ve…
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 10.1.0. Users are recommended to upgrade to ve…
CVE-2026-92609Critical· 9.8⚖ disputedSession fixation in HTTP management authentication allows remote attackers to gain unauthorized access to an authenticated management session via reuse of a session identifier retained across successful authentication. This issue affect…
Session fixation in HTTP management authentication allows remote attackers to gain unauthorized access to an authenticated management session via reuse of a session identifier retained across successful authentication. This issue affect…
CVE-2026-92608High· 7.5Improper handling of property-encoding exceptions in AMQP 1.0-to-AMQP 0-10 message conversion allows authenticated message producers to disrupt delivery to AMQP 0-10 consumers via message properties that the target encoder does not handl…
Improper handling of property-encoding exceptions in AMQP 1.0-to-AMQP 0-10 message conversion allows authenticated message producers to disrupt delivery to AMQP 0-10 consumers via message properties that the target encoder does not handl…
CVE-2026-86247High· 7.4⚖ disputedRace condition within a thread vulnerability in Apache Tomcat Native allowed client certificate verification requirements to be down-graded for some configurations. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, f…
Race condition within a thread vulnerability in Apache Tomcat Native allowed client certificate verification requirements to be down-graded for some configurations. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, f…
CVE-2026-86246Critical· 9.1Initialization of a resource with an insecure default vulnerability in Apache Tomcat Native enabled insecure options by default including ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and ALLOW_NO_DHE_KEX.…
Initialization of a resource with an insecure default vulnerability in Apache Tomcat Native enabled insecure options by default including ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and ALLOW_NO_DHE_KEX.…
CVE-2026-86243High· 7.5Buffer over-read vulnerability in Apache Tomcat Native during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8
Buffer over-read vulnerability in Apache Tomcat Native during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. E…
CVE-2026-94251Medium· 6.5A vulnerability in Apache Sling Security Bundle: ContentDispositionFilter mediates only one address/API shape of a resource This issue affects Apache Sling Security Bundle: before 1.3.12. Users are recommended to upgrade to version…
A vulnerability in Apache Sling Security Bundle: ContentDispositionFilter mediates only one address/API shape of a resource This issue affects Apache Sling Security Bundle: before 1.3.12. Users are recommended to upgrade to version…
CVE-2026-94243High· 7.3A vulnerability in Apache Sling Security Bundle: the ReferrerFilter accepts weaker-than-orgin evidence. This issue affects Apache Sling Security Bundle: before 1.3.2. Users are recommended to upgrade to version 1.3.2, which fixes t…
A vulnerability in Apache Sling Security Bundle: the ReferrerFilter accepts weaker-than-orgin evidence. This issue affects Apache Sling Security Bundle: before 1.3.2. Users are recommended to upgrade to version 1.3.2, which fixes t…
CVE-2026-92001Medium· 6.1Improper restriction of recursive entity references in DTDs ('XML entity expansion') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
Improper restriction of recursive entity references in DTDs ('XML entity expansion') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
CVE-2026-91999Medium· 6.1Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
CVE-2026-91928Medium· 6.1Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
CVE-2026-91852Medium· 6.1Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS. This issue affects Apache Sling XSS: before 2.4.12. Users are recommended to upgrade to version 2.4.12, which f…
CVE-2026-73192Medium· 6.1An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability when using the XSSAPI.getValidHref() in Apache Sling XSS version 2.4.10 and prior may allow an attacker to perform a reflected…
An improper neutralization of input during web page generation ('Cross-site Scripting') [CWE-79] vulnerability when using the XSSAPI.getValidHref() in Apache Sling XSS version 2.4.10 and prior may allow an attacker to perform a reflected…
CVE-2026-82355Medium· 4.2When a request to the Airflow core API carries both a session cookie and an explicit `Authorization: Bearer` token, Airflow resolves the caller from the cookie and ignores the bearer token, inverting the intended precedence of bearer ove…
When a request to the Airflow core API carries both a session cookie and an explicit `Authorization: Bearer` token, Airflow resolves the caller from the cookie and ignores the bearer token, inverting the intended precedence of bearer ove…
CVE-2026-75158Medium· 4.3Apache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read
Apache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read. Any authenticated user holding asset-read access could therefore e…
CVE-2026-86473Critical· 9.1Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie
Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout …
CVE-2026-91865High· 7.5A small WS-Policy document using repeated policy references can force Neethi to re-expand the same references exponentially during normalization, consuming huge amounts of CPU and memory (denial of service). Users are recommended to upgr…
A small WS-Policy document using repeated policy references can force Neethi to re-expand the same references exponentially during normalization, consuming huge amounts of CPU and memory (denial of service). Users are recommended to upgr…
CVE-2026-91867Medium· 4.3When Neethi fetches a remote policy reference, it only limits the time per read, not the whole transfer, so a server that trickles bytes slowly can keep the fetch alive indefinitely and tie up the calling thread (denial of service). User…
When Neethi fetches a remote policy reference, it only limits the time per read, not the whole transfer, so a server that trickles bytes slowly can keep the fetch alive indefinitely and tie up the calling thread (denial of service). User…
CVE-2026-91866High· 7.5A specially crafted pair of WS-Policy documents can force Neethi's policy-intersection to do exponential amounts of work, pinning the CPU for a long time (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes…
A specially crafted pair of WS-Policy documents can force Neethi's policy-intersection to do exponential amounts of work, pinning the CPU for a long time (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes…
CVE-2026-91863High· 7.5A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service). Users are recommended to upgrade to version 3.2.4, w…
A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service). Users are recommended to upgrade to version 3.2.4, w…
CVE-2026-91864High· 7.5A specially crafted WS-Policy document can pack unlimited content inside a policy assertion, which Neethi copies into memory without counting it against its size limits, exhausting the heap (denial of service). Users are recommended to u…
A specially crafted WS-Policy document can pack unlimited content inside a policy assertion, which Neethi copies into memory without counting it against its size limits, exhausting the heap (denial of service). Users are recommended to u…
CVE-2026-87976High· 8.1Apache NiFi Registry 0.4.0 through 2.11.0 are subject to path manipulation when storing extension bundle content using group, artifact, and version coordinates from uploaded NAR manifests
Apache NiFi Registry 0.4.0 through 2.11.0 are subject to path manipulation when storing extension bundle content using group, artifact, and version coordinates from uploaded NAR manifests. The default file persistence provider used coord…
CVE-2026-86089High· 7.1⚖ disputedApache NiFi 2.11.0 supports migrating the contents of a version-controlled Process Group into a Connector using REST API methods that list eligible migration sources and submit migration requests
Apache NiFi 2.11.0 supports migrating the contents of a version-controlled Process Group into a Connector using REST API methods that list eligible migration sources and submit migration requests. The framework authorized both methods ag…
CVE-2026-81866Medium· 4.3⚖ disputedApache NiFi 2.9.0 through 2.11.0 provide Connector configuration update and verification REST API methods that do not enforce authorization checking on Assets and Secrets referenced in proposed configuration
Apache NiFi 2.9.0 through 2.11.0 provide Connector configuration update and verification REST API methods that do not enforce authorization checking on Assets and Secrets referenced in proposed configuration. Updating or verifying a Conn…
CVE-2026-82561Medium· 6.5Apache NiFi 1.5.0 through 2.11.0 provide REST API methods that replace the entire contents of a Process Group using a client-supplied flow definition, covering Process Group flow replacement together with versioned flow update and rebase…
Apache NiFi 1.5.0 through 2.11.0 provide REST API methods that replace the entire contents of a Process Group using a client-supplied flow definition, covering Process Group flow replacement together with versioned flow update and rebase…
CVE-2026-70469High· 7.5Apache NiFi 2.11.0 disabled support for gzip-encoded HTTP requests for the application REST API and rejected requests that included the standard Content-Encoding header indicating gzip encoding
Apache NiFi 2.11.0 disabled support for gzip-encoded HTTP requests for the application REST API and rejected requests that included the standard Content-Encoding header indicating gzip encoding. The framework enforcement filter did not c…
CVE-2026-76186Critical· 9.1Apache Airflow Keycloak provider: from Airflow 3.3 the Keycloak auth manager takes a user's identity from the signed Airflow session token but takes the Keycloak access and refresh tokens used for every authorization decision from separa…
Apache Airflow Keycloak provider: from Airflow 3.3 the Keycloak auth manager takes a user's identity from the signed Airflow session token but takes the Keycloak access and refresh tokens used for every authorization decision from separa…
CVE-2026-76187Critical· 9.8Apache Airflow Keycloak provider: the unauthenticated token endpoint accepts a client-credentials grant for any confidential client registered in the Keycloak realm, not only the client configured for Airflow
Apache Airflow Keycloak provider: the unauthenticated token endpoint accepts a client-credentials grant for any confidential client registered in the Keycloak realm, not only the client configured for Airflow. No allowlist restricts whic…