mailbox._create_carefully has a possible toctou error #143010

New issue

Copy link

New issue

Copy link

Closed

Closed

mailbox._create_carefully has a possible toctou error#143010

Copy link

Labels

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-emailtype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Description

SiliconA-Z

opened on Dec 20, 2025

Issue body actions

Bug report

Bug description:

We should just reuse the fd and not double close.

CPython versions tested on:

CPython main branch

Operating systems tested on:

macOS

Linked PRs

• gh-143010: Prevent a TOCTOU issue by only calling open once #143011
• [3.13] gh-143010: Prevent a TOCTOU issue by only calling open once (GH-143011) #143079
• [3.14] gh-143010: Prevent a TOCTOU issue by only calling open once (GH-143011) #143080

Reactions are currently unavailable

Metadata

Metadata

Assignees

No one assigned

Labels

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directorytopic-emailtype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Projects

No projects

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions