CVE-2026-115774

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 stat...

Twisted: Denial of Service in the Twisted IMAP4 Server via a Negative Literal Size in SEARCH

Summary An infinite-loop vulnerability CWE-835 in the Twisted IMAP4 server lets an authenticated client freeze the whole process with one small command. twisted.mail.imap4.parseNestedParens reads an IMAP literal size with int and never rejects a negative value. A negative size such as -100 drives...

CVE-2026-115774

The Twisted framework (Python 3.6+) contains a Denial of Service vulnerability in the twisted.mail.imap4.IMAP4Server component prior to version 26.10.0rc1 . An authenticated client can send a SEARCH command with a negative literal size , which causes the parser cursor to move below zero. Due to P...

EUVD-2026-109148

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 stat...

CVE-2026-115774 Twisted: Denial of Service in the Twisted IMAP4 Server via a Negative Literal Size in SEARCH

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 stat...