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Document that multiprocessing treats local same-user processes as trusted#149001

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gpshead wants to merge 1 commit intopython:mainfrom
gpshead:docs-mp-same-uid-trust
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Document that multiprocessing treats local same-user processes as trusted#149001
gpshead wants to merge 1 commit intopython:mainfrom
gpshead:docs-mp-same-uid-trust

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@gpshead gpshead commented Apr 26, 2026

Clarify in the Authentication keys section that the authkey handshake covers Listener/Client (addressable endpoints) only, not the anonymous pipes behind Pipe() and Queue, and that isolation between same-user processes must be arranged at the OS level.


📚 Documentation preview 📚: https://cpython-previews--149001.org.readthedocs.build/

…sted

Clarify in the Authentication keys section that the authkey handshake
covers Listener/Client (addressable endpoints) only, not the anonymous
pipes behind Pipe() and Queue, and that isolation between same-user
processes must be arranged at the OS level.
@gpshead gpshead added docs Documentation in the Doc dir skip news needs backport to 3.13 bugs and security fixes labels Apr 26, 2026
@github-project-automation github-project-automation Bot moved this to Todo in Docs PRs Apr 26, 2026
@gpshead gpshead added the needs backport to 3.14 bugs and security fixes label Apr 26, 2026
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