[HIGH] [0.87] Remove FileIoHandler from packager connections - #58331
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[HIGH] [0.87] Remove FileIoHandler from packager connections#58331OskarEichler wants to merge 1 commit into
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Backport e3598fa. Co-authored-by: Pieter De Baets <pieterdb@meta.com>
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Summary:
Backports the security fix from #58096 /
e3598fac12d4a1169a8b25519e0669fb9e2e37c2to the 0.87 stable line.FileIoHandlerlets the connected packager open and read arbitrary files accessible to the Android app process. The handler was an internal-only legacy capability, has no iOS equivalent, and was removed frommainbecause leaving it available to a packager connection is a major security risk. React Native 0.87.1 and the current0.87-stablebranch still register it.This removes the handler registration, implementation, and Android API snapshot entry. It is intentionally the same narrowly scoped fix already reviewed and landed on
main.Changelog:
[ANDROID] [SECURITY] - Remove legacy packager file-read message handlers from the 0.87 stable line.
Test Plan:
git diff --check origin/0.87-stable...HEADmain.FileIoHandlerreference exists in the changed Android API and dev-support paths.