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fix: strictly validate sender for internal IPC reply channels (#50118) (#50161)

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The sender-mismatch check in invokeInWebContents and invokeInWebFrameMain
used a negative condition (`type === 'frame' && sender !== expected`),
which only rejected mismatched frame senders and accepted anything else.

Invert to a positive check so only the exact expected frame can resolve
the reply — matches the guard style used elsewhere in lib/browser/.

Co-authored-by: Samuel Attard <sam@electronjs.org>
This commit is contained in:
Keeley Hammond
2026-03-09 15:15:01 -07:00
committed by GitHub
parent f929de8896
commit 7594783ff8
1 changed files with 2 additions and 2 deletions
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4
lib/browser/ipc-main-internal-utils.ts
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@@ -19,8 +19,8 @@ export function invokeInWebContents<T> (sender: Electron.WebContents, command: s
const requestId = ++nextId;
const channel = `${command}_RESPONSE_${requestId}`;
ipcMainInternal.on(channel, function handler (event, error: Error, result: any) {
if (event.type === 'frame' && event.sender !== sender) {
console.error(`Reply to ${command} sent by unexpected WebContents (${event.sender.id})`);
if (event.type !== 'frame' || event.sender !== sender) {
console.error(`Reply to ${command} sent by unexpected sender`);
return;
}