CVE-2026-42304

Katalog CVE

CVSS 7.5 · High EPSS 0,95%

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

Deskripsi (NVD)

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.4.0rc2, the twisted.names module is vulnerable to a Denial of Service (DoS) attack via resource exhaustion during DNS name decompression. A remote, unauthenticated attacker can exploit this by sending a crafted TCP DNS packet containing deeply chained compression pointers. This flaw bypasses previous loop-prevention logic, causing the single-threaded Twisted reactor to hang while processing millions of recursive lookups, effectively freezing the server. This vulnerability is fixed in 26.4.0rc2.

Rincian

Terbit di NVD

13 Mei 2026

Terakhir diubah

17 Juni 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)

0,95% peluang dieksploitasi; lebih tinggi dari 60,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/twisted/twisted/security/advisories/GHSA-grgv-6hw6-v9g4 exploit · mitigasi · advisory vendor