UBUNTU-CVE-2026-50163

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2026-50163

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50163.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-50163

Upstream

CVE-2026-50163

Published

2026-07-17T20:17:00Z

Modified

2026-07-29T10:18:37Z

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
Ubuntu - medium

Summary

[none]

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/evil_cwd_link") to resolve header.Linkname against the process current working directory for a Typeflag=TypeLink entry such as Name=payload.tar.gz/evil_cwd_link 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.

References

Affected packages

Ubuntu:24.04:LTS / golang-oras-oras-go

Package

Name: golang-oras-oras-go
Purl: pkg:deb/ubuntu/golang-oras-oras-go?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.1.1-1ubuntu1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "golang-oras-oras-go-dev",
            "binary_version":  "1.1.1-1ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50163.json"

Ubuntu:26.04:LTS / golang-oras-oras-go