CVE-2026-87766

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Source
https://cve.org/CVERecord?id=CVE-2026-87766
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-87766.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-87766
Aliases
  • GHSA-pxhw-h44j-8pfx
Downstream
AZL (1)
DEBIAN (1)
MGASA (1)
openSUSE (1)
RHSA (10)
RLSA (3)
UBUNTU (1)
Related
ALSA (3)
openSUSE (1)
Published
2026-09-09T08:34:35Z
Modified
2026-10-24T02:32:58Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Bubblewrap: bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup
Details

A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sandboxed process starts. This issue is GHSA-pxhw-h44j-8pfx. It is fixed in bubblewrap 0.12.0.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87766.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "0:0.10.0-5.el10_2"
                        },
                        {
                            "fixed": "0:0.10.0-3.el10_0.4"
                        },
                        {
                            "fixed": "0:0.4.0-3.el8_10"
                        },
                        {
                            "fixed": "0:0.4.0-3.el8_4"
                        },
                        {
                            "fixed": "0:0.4.0-3.el8_4"
                        },
                        {
                            "fixed": "0:0.4.0-3.el8_6"
                        },
                        {
                            "fixed": "0:0.4.0-3.el8_6"
                        },
                        {
                            "fixed": "0:0.4.0-3.el8_8"
                        },
                        {
                            "fixed": "0:0.4.0-3.el8_8"
                        },
                        {
                            "fixed": "0:0.6.3-1.el9_8.1"
                        },
                        {
                            "fixed": "0:0.4.1-7.el9_2.1"
                        },
                        {
                            "fixed": "0:0.4.1-7.el9_4.1"
                        },
                        {
                            "fixed": "0:0.4.1-8.el9_6.1"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/containers/bubblewrap

Affected ranges

Type
GIT
Repo
https://github.com/containers/bubblewrap
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2a76602a8c71f36c1527cf9fc3417d9149822e0c
Database specific
Show details 
{
    "extracted_events": [
        {
            "original_tag": "v0.12.0",
            "range": [
                {
                    "fixed": "2a76602a8c71f36c1527cf9fc3417d9149822e0c"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

0.*
0.1.2
v0.*
v0.1.0
v0.1.1
v0.1.3
v0.1.4
v0.1.5
v0.1.7
v0.1.8
v0.10.0
v0.11.0
v0.11.1
v0.11.2
v0.2.0
v0.2.1
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.4.0
v0.4.1
v0.5.0
v0.6.0
v0.6.1
v0.6.2
v0.7.0
v0.8.0
v0.9.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-87766.json"