{"id":"AZL-80496","summary":"CVE-2026-33055 affecting package rpm-ostree for versions less than 2024.4-10","details":"tar-rs is a tar archive reading/writing library for Rust. Versions 0.4.44 and below have conditional logic that skips the PAX size header in cases where the base header size is nonzero. As part of CVE-2025-62518, the astral-tokio-tar project was changed to correctly honor PAX size headers in the case where it was different from the base header. This is almost the inverse of the astral-tokio-tar issue. Any discrepancy in how tar parsers honor file size can be used to create archives that appear differently when unpacked by different archivers. In this case, the tar-rs (Rust tar) crate is an outlier in checking for the header size - other tar parsers (including e.g. Go archive/tar) unconditionally use the PAX size override. This can affect anything that uses the tar crate to parse archives and expects to have a consistent view with other parsers. This issue has been fixed in version 0.4.45.","modified":"2026-08-30T05:26:50Z","published":"2026-03-20T07:16:13Z","upstream":["CVE-2026-33055"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33055"}],"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-80496.json"}}],"schema_version":"1.9.0"}