{"id":"RUSTSEC-2025-0110","revision":"2934597ddfd144ef9d978cd023ad732f","records":[{"revision":"2934597ddfd144ef9d978cd023ad732f","observedAt":"2026-10-24T13:19:54.901+00:00","statement":{"source":"osv","id":"RUSTSEC-2025-0110","aliases":["CVE-2025-62518","GHSA-j5gw-2vrg-8fgx","RUSTSEC-2025-0111"],"title":"astral-tokio-tar Vulnerable to PAX Header Desynchronization","description":"Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing\nvulnerability that allows attackers to smuggle additional archive entries by\nexploiting inconsistent PAX/ustar header handling. When processing archives with\nPAX-extended headers containing size overrides, the parser incorrectly advances\nstream position based on ustar header size (often zero) instead of the\nPAX-specified size, causing it to interpret file content as legitimate tar\nheaders.\n\nThis vulnerability was disclosed to multiple Rust tar parsers, all derived from\nthe original async-tar fork of tar-rs.\n\nFor additional information see\n[Edera's blog post](https://edera.dev/stories/tarmageddon).","state":0,"publishedAt":"2025-10-21T12:00:00+00:00","modifiedAt":"2026-10-12T18:00:11.4895627+00:00","affected":[{"ecosystem":"crates.io","name":"astral-tokio-tar","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.0.0-0"},{"kind":"fixed","version":"0.5.6"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","score":null,"severity":null}],"references":["https://crates.io/crates/astral-tokio-tar","https://rustsec.org/advisories/RUSTSEC-2025-0110.html","https://github.com/astral-sh/tokio-tar/commit/22b3f884adb7a2adf1d3a8d03469533f5cbc8318"],"sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2025-0110","license":"OSV · upstream source license applies","key":"osv:RUSTSEC-2025-0110","identifiers":["RUSTSEC-2025-0110","CVE-2025-62518","GHSA-j5gw-2vrg-8fgx","RUSTSEC-2025-0111"]},"retained":false,"historicalAffected":[]}],"coverage":[]}