CVE-2026-47699

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Source
https://cve.org/CVERecord?id=CVE-2026-47699
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47699.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-47699
Aliases
  • GHSA-84rc-2q4r-45pc
Published
2026-08-18T21:24:54Z
Modified
2026-09-11T03:30:26Z
Severity
  • 6.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
Summary
Confidential Containers Guest Components image-rs: zip-slip-class arbitrary file write via absolute entry path in hardlink fallback
Details

Confidential Containers Guest Components provides guest tools and components for confidential container workloads. From 0.16.0 until 0.20.0, a crafted OCI image layer can make image_rs::stream::unpack::unpack() create a hardlink outside its destination directory. In image-rs/src/stream/unpack.rs, try_hardlink_fallback() validates the hardlink source but computes the destination with destination.join(&entry_rel). Rust Path::join replaces the base when entry_rel is an absolute tar entry path, so fs::hard_link(&src_canon, &dst_entry_abs) can write attacker-controlled content to an arbitrary absolute path. In Confidential Containers the workload owner already controls trusted image content, so the issue is a workload-owner escape into the pod virtual machine rather than a crossing of the image trust boundary, but it may enable access to pod virtual machine capabilities and attestation abuse. This issue is fixed in version 0.20.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22",
        "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47699.json"
}
References

Affected packages

Git / github.com/confidential-containers/guest-components

Affected ranges

Type
GIT
Repo
https://github.com/confidential-containers/guest-components
Events
Introduced
048ddaec4ecd6ee45c845d69bc39416908764560
Fixed
14fbb711af0b29bb9cad307969d57b0de9b85d7f
Fixed
7cc1bc458973310296e58aedbb15cb7963297bbe
Fixed
f1561038b9a58d309a3366cc8e25d8e6162424a0
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0.16.0"
        },
        {
            "fixed": "0.20.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.16.0
v0.17.0
v0.18.0
v0.19.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47699.json"