CVE-2026-48514

Katalog CVE

CVSS 7.5 · High EPSS 0,40%

Kerentanan Allocation of Resources Without Limits or Throttling pada messagepack. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.301 and 3.1.7, UnsafeBlitFormatterBase<T>.Deserialize reads an attacker-controlled byteLength from an extension payload and allocates an array based on that value before validating it against the extension header length or remaining payload bytes. The outer extension header is bounded by available input, but that bound is not used to constrain the inner byteLength before allocation. A very small payload can therefore request a very large T[] allocation. This vulnerability is fixed in 2.5.301 and 3.1.7.

Rincian

Terbit di NVD

22 Juni 2026

Terakhir diubah

25 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-770: Allocation of Resources Without Limits or Throttling

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-w567-gjr2-hm5j mitigasi · advisory vendor