UBUNTU-CVE-2026-50162

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Source

https://ubuntu.com/security/CVE-2026-50162

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50162.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-50162

Upstream

CVE-2026-50162

Published

2026-07-17T20:17:00Z

Modified

2026-07-29T10:18:12.182986232Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through ocispec.AnnotationTitle such as out/pwn.txt can follow a workingDir symlink out -> /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1.

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

0Unknown 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-2026-50162.json"

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