Merge pull request #9450 from github/jamgregory-GHSA-47m2-wp7j-p9vc

Author: advisory-database[bot]

advisories/unreviewed/2026/09/GHSA-47m2-wp7j-p9vc/GHSA-47m2-wp7j-p9vc.json

@@ -1,23 +1,40 @@
 {
   "schema_version": "1.4.0",
   "id": "GHSA-47m2-wp7j-p9vc",
-  "modified": "2026-09-03T21:31:16Z",
+  "modified": "2026-09-03T21:31:20Z",
   "published": "2026-09-03T21:31:16Z",
   "aliases": [
     "CVE-2026-85396"
   ],
+  "summary": "rubyzip < 3.4.0 contain a path traversal vulnerability in `Zip::Entry#extract`",
   "details": "rubyzip versions before 3.4.0 contain a path traversal vulnerability in Zip::Entry#extract that fails to properly validate extraction paths using prefix comparison without trailing separators. Attackers can craft archive entries with names like ../upload_backup/owned.sh to write files outside the intended extraction directory into sibling paths sharing the destination prefix.",
   "severity": [
-    {
-      "type": "CVSS_V3",
-      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
-    },
     {
       "type": "CVSS_V4",
-      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
+      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "RubyGems",
+        "name": "rubyzip"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "fixed": "3.4.0"
+            }
+          ]
+        }
+      ]
     }
   ],
-  "affected": [],
   "references": [
     {
       "type": "ADVISORY",