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CVE-2026-87766 Bubblewrap: bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup

🗓️ 09 Sep 2026 08:34:35Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Symlink traversal via /oldroot in Bubblewrap allows writing files outside sandbox during setup.

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Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-87766
9 Sep 202608:34
cve
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 10",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "bubblewrap",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "bubblewrap",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "bubblewrap",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Hardened Images",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "bubblewrap",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:hummingbird:1"
    ]
  }
]

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