{"id":"AZL-80499","summary":"CVE-2026-33056 affecting package rpm-ostree for versions less than 2024.4-10","details":"tar-rs is a tar archive reading/writing library for Rust. In versions 0.4.44 and below, when unpacking a tar archive, the tar crate's unpack_dir function uses fs::metadata() to check whether a path that already exists is a directory. Because fs::metadata() follows symbolic links, a crafted tarball containing a symlink entry followed by a directory entry with the same name causes the crate to treat the symlink target as a valid existing directory — and subsequently apply chmod to it. This allows an attacker to modify the permissions of arbitrary directories outside the extraction root. This issue has been fixed in version 0.4.45.","modified":"2026-08-31T05:26:27Z","published":"2026-03-20T08:16:11Z","upstream":["CVE-2026-33056"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33056"}],"affected":[{"package":{"name":"rpm-ostree","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/rpm-ostree"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2024.4-10"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-80499.json"}}],"schema_version":"1.9.0"}