CVE-2026-4177

toddr yaml

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2026-4177

Katalog CVE

CVSS 9.1 · Critical EPSS 0,63%

Kerentanan Heap-based Buffer Overflow pada toddr yaml. Skor CVSS 3.1 9.1 (Critical) menurut CISA ADP.

Deskripsi (NVD)

YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter. The heap overflow occurs when class names exceed the initial 512-byte allocation. The base64 decoder could read past the buffer end on trailing newlines. strtok mutated n->type_id in place, corrupting shared node data. A memory leak occurred in syck_hdlr_add_anchor when a node already had an anchor. The incoming anchor string 'a' was leaked on early return.

Rincian

Terbit di NVD
16 Maret 2026
Terakhir diubah
15 Juli 2026
Status NVD
Modified
CVSS 3.1
9.1 (Critical), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-122: Heap-based Buffer Overflow
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
EPSS (30 hari)
0,63% peluang dieksploitasi; lebih tinggi dari 48,5% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
toddr yaml Semua versi sebelum 1.37

> 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.