DEBIAN-CVE-2026-115774
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-115774
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-115774.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-115774
- Upstream
- Published
- 2026-10-23T21:17:22Z
- Modified
- 2026-10-24T13:00:06Z
- Severity
-
- 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:12 / twisted
Package
- Name
- twisted
- Purl
- pkg:deb/debian/twisted?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / twisted
Package
- Name
- twisted
- Purl
- pkg:deb/debian/twisted?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:14 / twisted
Package
- Name
- twisted
- Purl
- pkg:deb/debian/twisted?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected