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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👁 59 Views

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

Related
Affected
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus		Amazon Linux 2023 : bubblewrap (ALAS2023-2026-3105)
29 Sep 202600:00
–nessus
nessus
Tenable Nessus		TencentOS Server 4: bubblewrap (TSSA-2026:1022)
23 Sep 202600:00
–nessus
nessus
Tenable Nessus		Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS / Pro Realtime 22.04 LTS / Pro Realtime 24.04 LTS : Bubblewrap vulnerabilities (USN-8779-1)
18 Sep 202600:00
–nessus
nessus
Tenable Nessus		Linux Distros Unpatched Vulnerability : CVE-2026-87766
9 Sep 202600:00
–nessus
amazon
Amazon		Important: bubblewrap
29 Sep 202600:00
–amazon
cbl_mariner
CBLMariner		CVE-2026-87766 affecting package bubblewrap for versions less than 0.12.0-1
18 Sep 202614:58
–cbl_mariner
circl
Circl		CVE-2026-87766
9 Sep 202609:52
–circl
cve
CVE		CVE-2026-87766
9 Sep 202608:34
–cve
debiancve
Debian CVE		CVE-2026-87766
9 Sep 202608:34
–debiancve
oraclelinux
Oracle linux		bubblewrap security update
19 Oct 202600:00
–oraclelinux
Rows per page
[
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  },
  {
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        "version": "0:0.6.3-1.el9_8.1",
        "lessThan": "*",
        "versionType": "rpm",
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      }
    ],
    "cpes": [
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    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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      }
    ],
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    ]
  },
  {
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    "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
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    ]
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    ],
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    "packageName": "bubblewrap",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:hummingbird:1"
    ]
  }
]

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19 Oct 2026 23:12Current
CVSS 3.18.8
EPSS0.00151
SSVC
CWE-59
BubblewrapSymlink traversalSandbox escape/oldrootSetup phase
59