diff --git a/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json b/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json
new file mode 100644
index 0000000000000..96de288072595
--- /dev/null
+++ b/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json
@@ -0,0 +1,102 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-p93r-85wp-75v3",
+  "modified": "2026-04-25T23:25:25Z",
+  "published": "2026-04-17T18:31:50Z",
+  "aliases": [
+    "CVE-2026-5598"
+  ],
+  "summary": "Bouncy Castle Has Covert Timing Channel Vulnerability",
+  "details": "Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.84.",
+  "severity": [],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.bouncycastle:bcprov-jdk15to18"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "1.71"
+            },
+            {
+              "fixed": "1.84"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.bouncycastle:bcprov-jdk14"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "1.71"
+            },
+            {
+              "fixed": "1.84"
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.bouncycastle:bcprov-jdk18on"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "1.71"
+            },
+            {
+              "fixed": "1.84"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5598"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/bcgit/bc-java"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/bcgit/bc-java/wiki/CVE-2026-5598"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-385"
+    ],
+    "severity": "LOW",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-04-25T23:25:24Z",
+    "nvd_published_at": "2026-04-15T10:16:49Z"
+  }
+}
\ No newline at end of file