{"id":"UBUNTU-CVE-2026-50162","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 -\u003e /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1.","modified":"2026-07-29T10:18:37.938336777Z","published":"2026-07-17T20:17:00Z","upstream":["CVE-2026-50162"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-50162"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-50162"},{"type":"REPORT","url":"https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv"}],"affected":[{"package":{"name":"golang-oras-oras-go","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/golang-oras-oras-go?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["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"}},{"package":{"name":"golang-oras-oras-go","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/golang-oras-oras-go?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.0-1","2.6.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.6.0-1","binary_name":"golang-oras-oras-go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-50162.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"},{"type":"Ubuntu","score":"medium"}]}