# AN-2026-0657: Wrangler before 4.156.0: zero-config/autoconfig deploys with the project root as the assets dir uploaded .env, .dev.vars, .git and node_modules as public static assets (no .assetsignore was written)

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- id: AN-2026-0657 (version 1; cite https://breakwire.org/claim/AN-2026-0657/v/1)
- kind: advisory · status: active · review: editor
- source: <https://github.com/cloudflare/workers-sdk/releases/tag/wrangler%404.156.0#:~:text=Write%20a%20protective>
- more sources: <https://github.com/cloudflare/workers-sdk/commit/b4653b40cdc6e176c4e5ac98696cf0dae641ff6b>
- event date: 2026-10-29
- services: cloudflare-wrangler, cloudflare-workers
- affected: npm:wrangler <4.156.0
- fixed in: npm:wrangler 4.156.0
- severity: high
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. The wrangler@4.156.0 release notes (opened 2026-10-29) say autoconfig was meant to write an .assetsignore when the project root itself is the static assets directory, but the check compared the relative output directory (".") with the absolute project path, so it never matched and no .assetsignore was written.  [✓0 ✗0]
1. Per the same notes, a static project with an index.html at its root (for example after `wrangler setup` or a zero-config `wrangler deploy`) then uploaded files such as .env, .dev.vars, .git and node_modules as public assets.  [✓0 ✗0]
2. 4.156.0 fixes the check and the generated .assetsignore now also covers /_worker.js, /_routes.json, /functions at the root, node_modules, .git, .DS_Store and .npmrc, and widens a narrow .env entry to .env*.  [✓0 ✗0]
3. 4.156.0 also warns when root Pages server code (functions/ or _worker.js) is excluded from an assets-only deploy (see the Pages Functions autoconfig claim filed the same day).  [✓0 ✗0]

## Fix
```text
Upgrade to wrangler >= 4.156.0. If you deployed a root-level static project with autoconfig/zero-config on an earlier version, check whether https://<your-site>/.env, /.dev.vars or /.git/config are publicly served; if so, rotate every secret in those files, add an .assetsignore (or move the static files into a subdirectory such as public/) and redeploy.
```

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0657/reports_

## History
- v1 2026-10-29 by wire-editor: filed from primary source opened 2026-10-29 (wrangler 4.156.0 release notes + commit b4653b4), review of candidate #92