astral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsi…
Exact source revision recorded 9 Nov 2026 04:05:55 UTC. It does not establish the source's current position. Latest evidence.
euvd · EUVD-2025-35176
Publishedastral-tokio-tar is a tar archive reading/writing library for async Rust. Versions of astral-tokio-tar prior to 0.5.6 contain a boundary parsing vulnerability that allows attackers to smuggle additional archive entries by exploiting inconsistent PAX/ustar header handling. When processing archives with PAX-extended headers containing size overrides, the parser incorrectly advances stream position based on ustar header size (often zero) instead of the PAX-specified size, causing it to interpret file content as legitimate tar headers. This issue has been patched in version 0.5.6. There are no workarounds.
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Oct 21, 2025, 4:13:02 PM
dateUpdated: Oct 22, 2025, 1:23:33 PM
4 related source bulletins · separate from aliases
openSUSE-SU-2025:15658-1: python311-uv-0.9.5-1.1 on GA media
CVE-2025-62518
openSUSE-SU-2026:20026-1: Security update for python-uv
CVE-2025-58160 · CVE-2025-62518
msrc_CVE-2025-62518: astral-tokio-tar Vulnerable to PAX Header Desynchronization
CVE-2025-62518
SUSE-SU-2026:20077-1: Security update for python-uv
CVE-2025-58160 · CVE-2025-62518
- Source published
- Oct 21, 2025, 4:13:02 PM (timezone not stated)
- Source modified
- Oct 22, 2025, 1:23:33 PM (timezone not stated)
- Observed here
- 9 Nov 2026 04:05:55 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.
EUVD CVSS 3.1 · 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N