CVE-2026-41991: gnu gzip

csirt@kutim:~/threat-intel/cve/CVE-2026-41991

CVSS 4.7 · Medium EPSS 0,14%

Kerentanan Insecure Temporary File pada gnu gzip. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling. When the mktemp utility is not available in the user’s PATH, gzexe falls back to constructing a temporary file path based solely on the process ID (PID). This predictable filename is created without exclusive access or existence checks. A local attacker can pre‑create the predicted temporary file path as a symbolic link pointing to an arbitrary file writable by the victim. When gzexe runs, it follows the symlink and overwrites the target file, resulting in a time‑of‑check to time‑of‑use (TOCTOU) condition that allows arbitrary file overwrite. This issue has been fixed in the commit 4e6f8b24ab823146ab8776f0b7fe486ab34d4269

Rincian

Terbit di NVD: 29 Juni 2026
Terakhir diubah: 1 Juli 2026
Status NVD: Analyzed
CVSS 3.1: 4.7 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-377: Insecure Temporary File
EPSS (30 hari): 0,14% peluang dieksploitasi; lebih tinggi dari 3,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
gnu	gzip	Semua versi hingga 1.14

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.