CVE-2025-62518
CVE-2025-62518
8.1
HighPublished:
Last updated:
Source:security-advisories@github.com
Deferred
Weakness (CWE)
CVSS Vector
v3.1- Attack Vector
- Network
- Attack Complexity
- Low
- Privileges Required
- None
- User Interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Description
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 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.
References
security-advisories@github.com
https://edera.dev/stories/tarmageddonsecurity-advisories@github.com
https://github.com/astral-sh/tokio-tar/commit/22b3f884adb7a2adf1d3a8d03469533f5cbc8318security-advisories@github.com
https://github.com/astral-sh/tokio-tar/security/advisories/GHSA-j5gw-2vrg-8fgxsecurity-advisories@github.com
https://github.com/astral-sh/uv/security/advisories/GHSA-w476-p2h3-79g9security-advisories@github.com
https://github.com/edera-dev/cve-tarmageddon