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docs: add security policy (SECURITY.md) #56611

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3bcc72f
docs: add security policy (SECURITY.md)
srpatcha Apr 25, 2026
b7b349a
fix: add W3C FileReader spec compliance for state transitions
srpatcha Apr 25, 2026
22f89d8
feat: add ResizeObserver polyfill with entry creation, scheduling, an…
srpatcha Apr 25, 2026
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14 changes: 14 additions & 0 deletions .github/SECURITY.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
# Security Policy

## Reporting a Vulnerability

If you discover a security vulnerability in React Native, please report it responsibly.

**Please do NOT report security vulnerabilities through public GitHub issues.**

Instead, please report them through [Facebook's Bug Bounty program](https://www.facebook.com/whitehat) or via [GitHub Security Advisories](https://github.com/facebook/react-native/security/advisories/new).

Please include:
- Type of issue
- Steps to reproduce
- Impact assessment
30 changes: 30 additions & 0 deletions packages/react-native/Libraries/Blob/FileReader.js
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Original file line number Diff line number Diff line change
Expand Up @@ -72,6 +72,13 @@ class FileReader extends EventTarget {
}

readAsArrayBuffer(blob: ?Blob): void {
if (this._readyState === LOADING) {
throw new DOMException(
'The object is in an invalid state.',
'InvalidStateError',
);
}

this._aborted = false;

if (blob == null) {
Expand All @@ -80,6 +87,9 @@ class FileReader extends EventTarget {
);
}

this._readyState = LOADING;
this.dispatchEvent(new Event('loadstart'));

NativeFileReaderModule.readAsDataURL(blob.data).then(
(text: string) => {
if (this._aborted) {
Expand All @@ -103,6 +113,13 @@ class FileReader extends EventTarget {
}

readAsDataURL(blob: ?Blob): void {
if (this._readyState === LOADING) {
throw new DOMException(
'The object is in an invalid state.',
'InvalidStateError',
);
}

this._aborted = false;

if (blob == null) {
Expand All @@ -111,6 +128,9 @@ class FileReader extends EventTarget {
);
}

this._readyState = LOADING;
this.dispatchEvent(new Event('loadstart'));

NativeFileReaderModule.readAsDataURL(blob.data).then(
(text: string) => {
if (this._aborted) {
Expand All @@ -130,6 +150,13 @@ class FileReader extends EventTarget {
}

readAsText(blob: ?Blob, encoding: string = 'UTF-8'): void {
if (this._readyState === LOADING) {
throw new DOMException(
'The object is in an invalid state.',
'InvalidStateError',
);
}

this._aborted = false;

if (blob == null) {
Expand All @@ -138,6 +165,9 @@ class FileReader extends EventTarget {
);
}

this._readyState = LOADING;
this.dispatchEvent(new Event('loadstart'));

NativeFileReaderModule.readAsText(blob.data, encoding).then(
(text: string) => {
if (this._aborted) {
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