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CVE-2026-23795

Apache Syncope: Console XXE on Keymaster parameters

Improper Restriction of XML External Entity Reference vulnerability in Apache Syncope Console. An administrator with adequate entitlements to create or edit Keymaster parameters via Console can construct malicious XML text to launch an XXE attack, thereby causing sensitive data leakage occurs. This issue affects Apache Syncope: from 3.0 through 3.0.15, from 4.0 through 4.0.3. Users are recommended to upgrade to version 3.0.16 / 4.0.4, which fix this issue.

CVSS 3.1 · 4.9 Medium EPSS 2.0% KEV · Not listed
Vendors
Apache
Products
Syncope
CVE-2025-59060

Apache Ranger: Hostname verification bypass in NiFiRegistryClient

Hostname verification bypass issue in Apache Ranger NiFiRegistryClient is reported in Apache Ranger versions <= 2.7.0. Users are recommended to upgrade to version 2.8.0, which fixes this issue.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Ranger
CVE-2026-23903

Apache Shiro: Auth bypass when accessing static files only on case-insensitive filesystems

Authentication Bypass by Alternate Name vulnerability in Apache Shiro. This issue affects Apache Shiro: before 2.0.7. Users are recommended to upgrade to version 2.0.7, which fixes the issue. The issue only effects static files. If static files are served from a case-insensitive filesystem, such as default macOS setup, static files may be accessed by varying the case of the filename in the request. If only lower-case (common default) filters are present in Shiro, they may be bypassed this way. Shiro 2.1.0 and later has a new parameters to remediate this issue shiro.ini: filterChainResolver.caseInsensitive = true application.properties: shiro.caseInsensitive=true Shiro 3.0.0 and later makes this the default in shiro.ini-based configurations. Shiro 3.0.1 and later makes this the default in all configurations, including programmatic and Spring / Spring Boot.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Shiro
CVE-2026-49975

Apache HTTP Server: mod_http2 denial of service

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

CVSS 3.1 · 7.5 High EPSS 33.0% KEV · Not listed
Vendors
Apache Debian
Products
Http Server Debian Linux
CVE-2026-59244

Apache Airflow: Secrets masker: `var.json` Variable values not masked in the Rendered Templates UI

Apache Airflow's secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered Templates UI — the dict value failed an `isinstance(str)` guard — so a secret stored as a JSON Variable and referenced in a template via `var.json` was displayed in cleartext to any user with access to that task's Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Airflow
CVE-2026-58076

Apache Airflow: Unguarded import_string() of airflow_exc_ser / base_exc_ser exception nodes in BaseSerialization.deserialize enables DAG-author RCE on Scheduler / API Server

Apache Airflow's serialization layer reconstructed exception nodes by calling `import_string()` on a class name taken from the serialized blob and instantiating it with arguments from the same blob, with no restriction on what could be imported. An operator's `executor_config` reaches that branch, so a Dag author could place a value there that causes an arbitrary callable to be imported and invoked -- for example `subprocess.check_output`, or `builtins.eval` on the `builtins`-prefixed variant. The code runs in the **Scheduler**, which reconstructs serialized Dags in its normal loop with no request involved, and in the **API server**, on any authenticated read of the Dag such as `GET /api/v2/dags/{dag_id}/details`. Both are components the Airflow security model states must never execute Dag-author code, and both hold the metadata database credentials and the JWT signing secret. No non-default configuration is required. This is a **different sink from CVE-2026-33264**, which covered only the trigger branch of the same deserializer: deployments that upgraded in response to that advisory are still affected through the exception branch and must upgrade again. Users are advised to upgrade to apache-airflow 3.3.1 or later, which restricts the imported class to a subclass of `BaseException`.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Airflow
CVE-2026-73631

Apache Struts: Shared parsing state in the JSON plugin

Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-request parsing state could be shared across concurrent requests, allowing data associated with one request to become observable in another, and configured parsing limits not to be enforced as intended. Populating actions from a JSON request body is not enabled by default; applications that do not use the JSON plugin are not affected. This issue affects Apache Struts: 7.2.1. Users are recommended to upgrade to version 7.3.0, which fixes the issue.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Struts
CVE-2026-73632

Apache Struts: Shared serialization state in the JSON plugin

Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-response serialization state could be shared across concurrent requests, allowing response content associated with one request to become observable in another. Only the SMD / JSON-RPC handling of the JSON interceptor is affected, which is not enabled by default; applications using the json result type are not affected. This issue affects Apache Struts: 7.2.1. Users are recommended to upgrade to version 7.3.0, which fixes the issue.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Struts
CVE-2026-73634

Apache Struts: Unbounded read of a Content Security Policy violation report

Uncontrolled resource consumption vulnerability in Apache Struts. An application that exposes an endpoint collecting Content Security Policy violation reports reads the submitted report into memory without bounding how much it will accept, so a single request can exhaust the heap and deny service to other users. Such endpoints are ordinarily reachable without authentication. The core distribution maps no such endpoint by default; applications that do not collect violation reports are not affected. This issue affects Apache Struts: from 6.0.0 through 6.10.0, from 7.0.0 through 7.2.1. Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Struts
CVE-2026-73635

Apache Struts: Unbounded growth of localized-text caches driven by the request locale

Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale are not affected. This issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.10.0, from 7.0.0 through 7.2.1. Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Struts
CVE-2026-61899

Apache Tapestry: Possible classpath file download through URL manipulation

Vulnerability in tapestry-core in Apache Tapestry 5.5.0+ on all platforms allows attackers to download clsspath assets via specially crafted URLs. Users are recommended to upgrade to version 5.9.1, which fixes this issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Tapestry
CVE-2026-73633

Apache Struts: Unbounded read of a JSON request body

Uncontrolled resource consumption vulnerability in the JSON plugin of Apache Struts. When an application is configured to populate actions from a JSON request body, the plugin reads that body into memory without bounding how much it will accept, so a single request can exhaust the heap and deny service to other users. The plugin's configurable JSON input length limit does not bound this read. The JSON plugin is an optional component; applications that do not use it, or use it without enabling JSON request-body handling, are not affected. This issue affects Apache Struts: from 2.1.8 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.10.0, from 7.0.0 through 7.2.1. Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Struts
CVE-2026-73237

Apache Allura: XSS in markdown pipeline

XSS vulnerability in Markdown handling in Apache Allura. This issue affects Apache Allura: from 1.10.0 before 1.19.1. Users are recommended to upgrade to version 1.19.1, which fixes the issue.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Allura
CVE-2026-73238

Apache Allura: XSS in code display

XSS vulnerability in code display in Apache Allura. This issue affects Apache Allura: before 1.19.1. Users are recommended to upgrade to version 1.19.1, which fixes the issue.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Allura
CVE-2026-73239

Apache Allura: Missing permission checks IDOR

Insecure Direct Object Reference (IDOR) due to missing permission checks for multiple Artifact types in Apache Allura. This issue affects Apache Allura: before 1.19.1. Users are recommended to upgrade to version 1.19.1, which fixes the issue.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Allura
CVE-2026-69223

Apache Allura: Server-side request forgery

Apache Allura's webhooks are vulnerable to Server-Side Request Forgery (SSRF). This issue affects Apache Allura: before 1.19.1. Users are recommended to upgrade to version 1.19.1, which fixes the issue.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Allura
CVE-2026-73240

Apache Allura: Git command injection

Specifically crafted inputs may lead to git argument injection in Apache Allura. This issue affects Apache Allura: before 1.19.1. Users are recommended to upgrade to version 1.19.1, which fixes the issue.

CVSS 3.1 · 9.8 Critical EPSS 1.0% KEV · Not listed
Vendors
Apache
Products
Allura
CVE-2026-67587

Apache Airflow: DAG-author remote code execution on the Scheduler via a Serde `Callback` deserialization gadget

Apache Airflow's Task SDK rebuilt a `Callback` object from serialized data by re-running its constructor, which imports the module named by the stored callback path. Because `SyncCallback` is itself an Airflow class it passes the default `allowed_deserialization_classes` allow-list, so tightening that setting does not help. A Dag author — who controls a task instance's `next_kwargs` through the task execution API — can therefore cause an arbitrary module to be imported inside the scheduler process, when the scheduler's `awaiting_input` timeout sweep deserializes that value. No non-default configuration is required; the sweep runs unconditionally. Versions before 3.3.0 are not affected: the class existed, but the scheduler sweep that reaches it did not. This is a separate code path from CVE-2026-58076 and CVE-2026-67260, which cover different gadgets reaching deserialization — applying either of those fixes does not address this one. Users are advised to upgrade to apache-airflow 3.3.1 or later.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Airflow
CVE-2026-67260

Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserialization

Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new `awaiting_input` task state swept by the scheduler. That sweep deserializes the task instance's `next_kwargs` without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an arbitrary module import and object instantiation inside the scheduler process, or terminate the scheduler job. No non-default configuration is required: the sweep runs unconditionally every 15 seconds, and the default `allowed_deserialization_classes` setting does not cover this code path. Versions before 3.3.0 are not affected, because human-in-the-loop tasks deferred onto the triggerer instead. This is a different code path from CVE-2026-58076, which covers the same unguarded exception-node deserialization reached elsewhere — deployments that applied that fix must upgrade for this issue as well. Users are advised to upgrade to apache-airflow 3.3.1 or later.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Airflow
CVE-2026-68868

Apache Airflow Google provider: google Secret Manager backend: team scope is never applied, exposing every team's Connections and Variables

The Google Cloud Secret Manager secrets backend in Apache Airflow's Google provider never applied the team scope when resolving Connections and Variables: the caller's `team_name` was accepted by the backend but dropped at the internal call boundary, so every lookup resolved against the team-agnostic secret name. In a deployment running multi-team mode with this backend, a task or Dag belonging to one team resolved another team's Connection or Variable, obtaining its credentials in full. No unusual configuration is required beyond enabling multi-team mode and using this backend. Users are advised to upgrade to apache-airflow-providers-google 22.3.0 or later, which builds and applies the team-scoped secret name.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Airflow Google Provider Apache-airflow-providers-google