From b7a97bfced20663029d68b251f05691fd60be6af Mon Sep 17 00:00:00 2001
From: Andrea Cosentino <ancosen@gmail.com>
Date: Fri, 12 Jun 2026 13:04:20 +0200
Subject: [PATCH] Improve GHSA-xq69-5h5v-x9x4

---
 .../GHSA-xq69-5h5v-x9x4.json                  | 118 +++++++++++++++++-
 1 file changed, 117 insertions(+), 1 deletion(-)

diff --git a/advisories/unreviewed/2026/06/GHSA-xq69-5h5v-x9x4/GHSA-xq69-5h5v-x9x4.json b/advisories/unreviewed/2026/06/GHSA-xq69-5h5v-x9x4/GHSA-xq69-5h5v-x9x4.json
index 7a433709f593b..7a74b061c66e1 100644
--- a/advisories/unreviewed/2026/06/GHSA-xq69-5h5v-x9x4/GHSA-xq69-5h5v-x9x4.json
+++ b/advisories/unreviewed/2026/06/GHSA-xq69-5h5v-x9x4/GHSA-xq69-5h5v-x9x4.json
@@ -6,6 +6,7 @@
   "aliases": [
     "CVE-2026-41731"
   ],
+  "summary": "In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization",
   "details": "JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted header values that caused the consumer to deserialize arbitrary JDK types.\n\nAffected versions:\nSpring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.",
   "severity": [
     {
@@ -13,12 +14,127 @@
       "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
     }
   ],
-  "affected": [],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.springframework.kafka:spring-kafka"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "4.0.6"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 4.0.5"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.springframework.kafka:spring-kafka"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "3.3.16"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 3.3.15"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.springframework.kafka:spring-kafka"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "3.2.14"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 3.2.13"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.springframework.kafka:spring-kafka"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "2.9.14"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 2.9.13"
+      }
+    },
+    {
+      "package": {
+        "ecosystem": "Maven",
+        "name": "org.springframework.kafka:spring-kafka"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "2.8.12"
+            }
+          ]
+        }
+      ],
+      "database_specific": {
+        "last_known_affected_version_range": "<= 2.8.11"
+      }
+    }
+  ],
   "references": [
     {
       "type": "ADVISORY",
       "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41731"
     },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/spring-projects/spring-kafka"
+    },
     {
       "type": "WEB",
       "url": "https://spring.io/security/cve-2026-41731"