fix(security): Zip Slip + symlink hardening for v7.1.1 - #375
Open
plrthink wants to merge 1 commit into
Open
Conversation
Android: add ZipSecurity helper; validate paths and disable symlink extraction on unzip/unzipWithPassword/unzipAssets instead of extractAll. iOS: replace SSZipArchive full-unzip with minizip extract that rejects Zip Slip entries and skips symlink/__MACOSX entries. Co-authored-by: Perry <plrthink@gmail.com>
plrthink
marked this pull request as ready for review
August 29, 2026 11:01
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Security backport for users on v7.x (React Native < 0.70), as promised in
SECURITY.md.Android
ZipSecurityhelper (validateExtractPath,createExtractParameterswith symlinks disabled).unzipno longer usesextractAll; iterates entries with Zip Slip validation and symlink skipping.unzipWithPasswordusesZipSecurityinstead of inline path checks.unzipAssetsusesZipSecurity.validateExtractPath.iOS
RNZipArchive.mwithRNZipArchive.mmusing minizip for extract.__MACOSXentries (same approach as 9.4.1)..mm+ minizip header paths.Version