🛡️ UBUNTU-CVE-2026-33056
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-03-20
Updated 2026-06-15
Modified 2026-05-20
Fix URL N/A

Affected Packages

Software From version Fixed in
cargo — —
rust-astral-tokio-tar — —
rust-async-tar — —
rust-cargo-c — 0.10.11-1ubuntu1.1
rust-tar — 0.4.43-4ubuntu0.1
rustc — 1.75.0+dfsg0ubuntu1-0ubuntu7.4
rustc-1.62 — 1.62.1+dfsg1-1ubuntu0.22.04.3
rustc-1.74 — 1.74.1+dfsg0ubuntu1-0ubuntu15
rustc-1.76 — 1.76.0+dfsg0ubuntu1-0ubuntu0.24.04.2
rustc-1.77 — 1.77.2+dfsg1ubuntu1-0ubuntu0.24.04.1
rustc-1.78 — 1.78.0+dfsg1ubuntu1-0ubuntu0.24.04.2
rustc-1.79 — 1.79.0+dfsg1ubuntu1-0ubuntu0.24.04.1
rustc-1.80 — 1.80.1+dfsg0ubuntu1-0ubuntu0.24.04.01
rustc-1.81 — 1.81.0+dfsg0ubuntu1-0ubuntu0.24.04.1
rustc-1.82 — 1.82.0+dfsg0ubuntu0-0ubuntu0.24.04.1
rustc-1.83 — 1.83.0+dfsg0ubuntu1~bpo2-0ubuntu0.24.04.1
rustc-1.84 — 1.84.1+dfsg0ubuntu1~bpo2-0ubuntu2.24.04.1
rustc-1.85 — 1.85.1+dfsg0ubuntu2-0ubuntu1.25.04.1
rustc-1.88 — 1.88.0+dfsg0ubuntu1-0ubuntu2
rustc-1.89 — 1.89.0+dfsg~24.04-0ubuntu0.24.04.2
rustc-1.91 — 1.91.1+dfsg~24.04-0ubuntu0.24.04.2

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