CVE-2026-59885

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, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. 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
CWE-407: Inefficient Algorithmic Complexity

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/45bdb19eb7df4b3780fe9c912c63e99bffc39dd9 patch
• https://github.com/pyasn1/pyasn1/security/advisories/GHSA-8ppf-4f7h-5ppj advisory pihak ketiga
• https://github.com/pyasn1/pyasn1/releases/tag/v0.6.4 release notes