Publish Advisories

GHSA-fgw5-hp8f-xfhc
GHSA-j6cv-3w8p-vrg8

Author: advisory-database[bot]

advisories/github-reviewed/2026/04/GHSA-fgw5-hp8f-xfhc/GHSA-fgw5-hp8f-xfhc.json

@@ -0,0 +1,55 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-fgw5-hp8f-xfhc",
+  "modified": "2026-04-16T21:38:09Z",
+  "published": "2026-04-16T21:38:09Z",
+  "aliases": [],
+  "summary": "Istio: SSRF via RequestAuthentication jwksUri",
+  "details": "### Impact\n\nWhen a RequestAuthentication resource is created with a jwksUri pointing to an internal service, istiod makes an unauthenticated HTTP GET request to that URL without filtering out localhost or link local ips. This can result in sensitive data being distributed to Envoy proxies via xDS configuration.\n\nNote: a partial mitigation for this was released in 1.29.1, 128.5, and 1.27.8; however, it was incomplete and missed a few codepaths. 1.29.2 and 1.28.6 contain the more robust fix.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\n### Workarounds\n\nUsers can deploy a `ValidatingAdmissionPolicy` to prevent the creation of `RequestAuthentication` resources with suspicious jwksUri field values (e.g. localhost, 127.0.0.0/8, 169.254.0.0/16, the ipv6 variants, etc.).\n\n### References\nNone",
+  "severity": [
+    {
+      "type": "CVSS_V3",
+      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "istio.io/istio"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "0.0.0-20260410004459-189832a289c1"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/istio/istio/security/advisories/GHSA-fgw5-hp8f-xfhc"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/istio/istio"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-918"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-04-16T21:38:09Z",
+    "nvd_published_at": null
+  }
+}

…-j6cv-3w8p-vrg8/GHSA-j6cv-3w8p-vrg8.json …-j6cv-3w8p-vrg8/GHSA-j6cv-3w8p-vrg8.jsonadvisories/unreviewed/2026/04/GHSA-j6cv-3w8p-vrg8/GHSA-j6cv-3w8p-vrg8.json renamed to advisories/github-reviewed/2026/04/GHSA-j6cv-3w8p-vrg8/GHSA-j6cv-3w8p-vrg8.json advisories/unreviewed/2026/04/GHSA-j6cv-3w8p-vrg8/GHSA-j6cv-3w8p-vrg8.json renamed to advisories/github-reviewed/2026/04/GHSA-j6cv-3w8p-vrg8/GHSA-j6cv-3w8p-vrg8.json

@@ -1,40 +1,69 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-j6cv-3w8p-vrg8",
-  "modified": "2026-04-15T21:30:18Z",
+  "modified": "2026-04-16T21:40:08Z",
   "published": "2026-04-15T21:30:18Z",
   "aliases": [
     "CVE-2026-6383"
   ],
+  "summary": "KubeVirt's authorization mechanism improperly truncates subresource names",
   "details": "A flaw was found in KubeVirt's Role-Based Access Control (RBAC) evaluation logic. The authorization mechanism improperly truncates subresource names, leading to incorrect permission evaluations. This allows authenticated users with specific custom roles to gain unauthorized access to subresources, potentially disclosing sensitive information or performing actions they are not permitted to do. Additionally, legitimate users may be denied access to resources.",
   "severity": [
     {
       "type": "CVSS_V3",
       "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
     }
   ],
-  "affected": [],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Go",
+        "name": "kubevirt.io/kubevirt"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "last_affected": "1.8.1"
+            }
+          ]
+        }
+      ]
+    }
+  ],
   "references": [
     {
       "type": "ADVISORY",
       "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6383"
     },
+    {
+      "type": "WEB",
+      "url": "https://github.com/kubevirt/kubevirt/issues/17337"
+    },
     {
       "type": "WEB",
       "url": "https://access.redhat.com/security/cve/CVE-2026-6383"
     },
     {
       "type": "WEB",
       "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458741"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/kubevirt/kubevirt"
     }
   ],
   "database_specific": {
     "cwe_ids": [
       "CWE-863"
     ],
     "severity": "MODERATE",
-    "github_reviewed": false,
-    "github_reviewed_at": null,
+    "github_reviewed": true,
+    "github_reviewed_at": "2026-04-16T21:40:08Z",
     "nvd_published_at": "2026-04-15T19:16:38Z"
   }
 }