CVE-2026-47180

Katalog CVE

CVSS 6.5 · Medium EPSS 0,37%

Kerentanan Uncontrolled Recursion pada paulsm zeroconf. Skor CVSS 3.1 6.5 (Medium) menurut github.com.

Deskripsi (NVD)

Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.5, DNSIncoming._decode_labels_at_offset recurses once per DNS-name compression pointer, and a single mDNS packet carrying chained pointers can trigger a RecursionError that escapes DNSIncoming.__init__, causing sustained CPU burn, log flooding, and degraded mDNS-dependent features for unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb). This issue is fixed in version 0.149.5.

Rincian

Terbit di NVD

17 Juli 2026

Terakhir diubah

17 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber github.com
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-674: Uncontrolled Recursion

EPSS (30 hari)

0,37% peluang dieksploitasi; lebih tinggi dari 29,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-9pgc-3ccv-5297 advisory vendor · patch
• https://github.com/python-zeroconf/python-zeroconf/commit/f9e23592137f30fdf7ef710dba065da31c79b1cf patch
• https://github.com/python-zeroconf/python-zeroconf/pull/1719 issue tracking · patch
• https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.5 release notes