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fix(browser): block upload symlink escapes (#21972)

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Merged via /review-pr -> /prepare-pr -> /merge-pr.

Prepared head SHA: 4381ef9a4d
Co-authored-by: mbelinky <132747814+mbelinky@users.noreply.github.com>
Co-authored-by: mbelinky <132747814+mbelinky@users.noreply.github.com>
Reviewed-by: @mbelinky
This commit is contained in:
Mariano
2026-02-20 16:36:25 +00:00
committed by GitHub
parent 774d73b458
commit 8e4f6c0384
6 changed files with 157 additions and 8 deletions
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4
src/agents/tools/browser-tool.ts
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@@ -21,7 +21,7 @@ import {
} from "../../browser/client.js";
import { resolveBrowserConfig } from "../../browser/config.js";
import { DEFAULT_AI_SNAPSHOT_MAX_CHARS } from "../../browser/constants.js";
import { DEFAULT_UPLOAD_DIR, resolvePathsWithinRoot } from "../../browser/paths.js";
import { DEFAULT_UPLOAD_DIR, resolveExistingPathsWithinRoot } from "../../browser/paths.js";
import { applyBrowserProxyPaths, persistBrowserProxyFiles } from "../../browser/proxy-files.js";
import { loadConfig } from "../../config/config.js";
import { wrapExternalContent } from "../../security/external-content.js";
@@ -700,7 +700,7 @@ export function createBrowserTool(opts?: {
if (paths.length === 0) {
throw new Error("paths required");
}
const uploadPathsResult = resolvePathsWithinRoot({
const uploadPathsResult = await resolveExistingPathsWithinRoot({
rootDir: DEFAULT_UPLOAD_DIR,
requestedPaths: paths,
scopeLabel: `uploads directory (${DEFAULT_UPLOAD_DIR})`,