CVE-2026-115774

CVSS 4.9 · OrtaNVD: Received

Açıklama (NVD)

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.10.0rc1, twisted.mail.imap4.IMAP4Server reaches twisted.mail.imap4.parseNestedParens with a negative literal size in an authenticated SEARCH command after the client enters the selected mailbox state. The negative size moves the parser cursor below zero, and Python's negative indexing prevents the synchronous scanning loop from terminating. The loop freezes the single-threaded reactor, stopping other IMAP connections and any SMTP or POP3 services hosted in the same process until restart. This issue is fixed in version 26.10.0rc1.

Yayın: 24.10.2026 · Son değişiklik: 24.10.2026 · Zayıflık: CWE-400, CWE-835

CVSS 3.1 metrikleri

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Saldırı vektörüAğ (uzaktan)
KarmaşıklıkDüşük
Gereken yetkiYüksek
Kullanıcı etkileşimiGerekmez
KapsamDeğişmez
GizlilikYok
BütünlükYok
ErişilebilirlikYüksek

Hesaplanan temel puan: 4.9. CVSS hesaplayıcıda incele

Onaylıyor musunuz?