CVE-2026-33056

Katalog CVE

CVSS 6.5 · Medium EPSS 0,42%

Kerentanan UNIX Symbolic Link (Symlink) Following pada tar project tar. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

20 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-61: UNIX Symbolic Link (Symlink) Following

EPSS (30 hari)

0,42% peluang dieksploitasi; lebih tinggi dari 34,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/alexcrichton/tar-rs/security/advisories/GHSA-j4xf-2g29-59ph exploit · mitigasi · advisory vendor
• https://github.com/alexcrichton/tar-rs/commit/17b1fd84e632071cb8eef9d3709bf347bd266446 patch