CVE-2026-16599

Katalog CVE

CVSS 5.1 · Medium EPSS 0,38%

Kerentanan Unchecked Input for Loop Condition. Skor CVSS 4.0 5.1 (Medium) menurut cert.pl.

Deskripsi (NVD)

GNU wget is vulnerable to denial of service in its FTP OPIE/S-KEY authentication functionality. The server-supplied sequence number from the FTP challenge line is used as an iteration count for an MD5 key-derivation loop without any upper bound validation. A malicious FTP server or a network attacker positioned to intercept FTP traffic can send a crafted OPIE challenge with a sequence number near INT_MAX, causing wget to perform up to approximately 2.1 billion MD5 computations and suspend for some time. The --timeout option does not mitigate this because it applies only to network I/O, not CPU computation. This issue was fixed in commit e9697d98e7249b0f68a6be040a4f3dcc5bc101fa

Rincian

Terbit di NVD

25 Agustus 2026

Terakhir diubah

28 Agustus 2026

Status NVD

Deferred

CVSS 4.0

5.1 (Medium), sumber cert.pl
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-606: Unchecked Input for Loop Condition

EPSS (30 hari)

0,38% peluang dieksploitasi; lebih tinggi dari 29,5% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://cert.pl/en/posts/2026/08/CVE-2026-16599
• https://gitlab.com/gnuwget/wget
• https://gitlab.com/gnuwget/wget/-/commit/e9697d98e7249b0f68a6be040a4f3dcc5bc101fa