CVE-2026-59884

Katalog CVE

CVSS 7.5 · High EPSS 0,62%

Kerentanan Uncontrolled Resource Consumption pada pyasn1. Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER decoder shared by the CER and DER codecs parses long-form tags by accumulating continuation octets without an upper bound on the tag ID size, allowing a crafted input to force construction of an arbitrarily large integer with CPU cost growing quadratically and to trigger unhandled ValueError exceptions in Python 3.11+ error formatting paths. Any application decoding untrusted BER, CER, or DER input is affected. This issue is fixed in version 0.6.4.

Rincian

Terbit di NVD

14 Juli 2026

Terakhir diubah

21 Juli 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber github.com
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-400: Uncontrolled Resource Consumption

EPSS (30 hari)

0,62% peluang dieksploitasi; lebih tinggi dari 48,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/pyasn1/pyasn1/commit/628e36ecbb5277a3f01572ce418ef54271b165a5 patch
• https://github.com/pyasn1/pyasn1/security/advisories/GHSA-m4p7-r5rc-7g4j advisory pihak ketiga
• https://github.com/pyasn1/pyasn1/releases/tag/v0.6.4 release notes