CVE-2026-50163

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Source
https://cve.org/CVERecord?id=CVE-2026-50163
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50163.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-50163
Aliases
Downstream
Related
Published
2026-07-17T19:36:01.254Z
Modified
2026-07-25T03:56:45.838155889Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N CVSS Calculator
Summary
oras-go: Hardlink entry with relative Linkname escapes extract dir via process CWD resolution in `oras-go` tar extraction
Details

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, ensureLinkPath in content/file/utils.go:262-275 validates a hardlink target relative to the extract base but returns the unresolved target, causing os.Link("victim.secret", "<extract_base>/payload.tar.gz/evilcwdlink") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evilcwdlink and Linkname="victim.secret" with io.deis.oras.content.unpack: "true", which can expose or tamper with files such as .env, .git/config, .aws/credentials, and ~/.ssh/config. This issue is fixed in version 2.6.2.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50163.json",
    "cwe_ids": [
        "CWE-22",
        "CWE-59"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/oras-project/oras-go

Affected ranges

Type
GIT
Repo
https://github.com/oras-project/oras-go
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c463c654ab3ef34422c1764cd619806cebf20451
Fixed
105715ee12eac6895ec736a075285c34d9f2eeb6
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.6.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v2.*
v2.0.0
v2.0.0-alpha
v2.0.0-rc.1
v2.0.0-rc.2
v2.0.0-rc.3
v2.0.0-rc.4
v2.0.0-rc.5
v2.0.0-rc.6
v2.0.1
v2.0.2
v2.1.0
v2.2.0
v2.3.0
v2.4.0
v2.5.0
v2.6.0
v2.6.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50163.json"