Bump the npm_and_yarn group across 1 directory with 4 updates

[dependabot]

Bumps the npm_and_yarn group with 4 updates in the / directory: lodash, brace-expansion, flatted and undici.

Updates lodash from 4.17.23 to 4.18.1

Release notes

Sourced from lodash's releases.

4.18.1

Bugs

Fixes a ReferenceError issue in lodash lodash-es lodash-amd and lodash.template when using the template and fromPairs functions from the modular builds. See lodash/lodash#6167

These defects were related to how lodash distributions are built from the main branch using https://github.com/lodash-archive/lodash-cli. When internal dependencies change inside lodash functions, equivalent updates need to be made to a mapping in the lodash-cli. (hey, it was ahead of its time once upon a time!). We know this, but we missed it in the last release. It's the kind of thing that passes in CI, but fails bc the build is not the same thing you tested.

There is no diff on main for this, but you can see the diffs for each of the npm packages on their respective branches:

• lodash: lodash/lodash@4.18.0-npm...4.18.1-npm
• lodash-es: lodash/lodash@4.18.0-es...4.18.1-es
• lodash-amd: lodash/lodash@4.18.0-amd...4.18.1-amd
• lodash.templatelodash/lodash@4.18.0-npm-packages...4.18.1-npm-packages

4.18.0

v4.18.0

Full Changelog: lodash/lodash@4.17.23...4.18.0

Security

_.unset / _.omit: Fixed prototype pollution via constructor/prototype path traversal (GHSA-f23m-r3pf-42rh, fe8d32e). Previously, array-wrapped path segments and primitive roots could bypass the existing guards, allowing deletion of properties from built-in prototypes. Now constructor and prototype are blocked unconditionally as non-terminal path keys, matching baseSet. Calls that previously returned true and deleted the property now return false and leave the target untouched.

_.template: Fixed code injection via imports keys (GHSA-r5fr-rjxr-66jc, CVE-2026-4800, 879aaa9). Fixes an incomplete patch for CVE-2021-23337. The variable option was validated against reForbiddenIdentifierChars but importsKeys was left unguarded, allowing code injection via the same Function() constructor sink. imports keys containing forbidden identifier characters now throw "Invalid imports option passed into _.template".

Docs

• Add security notice for _.template in threat model and API docs (#6099)
• Document lower > upper behavior in _.random (#6115)
• Fix quotes in _.compact jsdoc (#6090)

lodash.* modular packages

Diff

We have also regenerated and published a select number of the lodash.* modular packages.

These modular packages had fallen out of sync significantly from the minor/patch updates to lodash. Specifically, we have brought the following packages up to parity w/ the latest lodash release because they have had CVEs on them in the past:

• lodash.orderby
• lodash.tonumber
• lodash.trim
• lodash.trimend
• lodash.sortedindexby
• lodash.zipobjectdeep
• lodash.unset
• lodash.omit
• lodash.template

Commits

• cb0b9b9 release(patch): bump main to 4.18.1 (#6177)
• 75535f5 chore: prune stale advisory refs (#6170)
• 62e91bc docs: remove n_ Node.js < 6 REPL note from README (#6165)
• 59be2de release(minor): bump to 4.18.0 (#6161)
• af63457 fix: broken tests for _.template 879aaa9
• 1073a76 fix: linting issues
• 879aaa9 fix: validate imports keys in _.template
• fe8d32e fix: block prototype pollution in baseUnset via constructor/prototype traversal
• 18ba0a3 refactor(fromPairs): use baseAssignValue for consistent assignment (#6153)
• b819080 ci: add dist sync validation workflow (#6137)
• Additional commits viewable in compare view

Updates brace-expansion from 1.1.12 to 1.1.18

Release notes

Sourced from brace-expansion's releases.

v1.1.15

• Backport v5.0.6 change to v1 (#111) 0b09384

---

juliangruber/brace-expansion@v1.1.14...v1.1.15

Commits

• 758fcd6 1.1.18
• 27fbeed Merge commit from fork
• 5c57cc2 1.1.17
• d757f1d npm ignore .claude
• cb4b9e4 fix: backport GHSA-mh99-v99m-4gvg (#129)
• 447763a 1.1.16
• d74e630 fix: v1 backport for CVE-2026-13149 (#122)
• 2203f4f 1.1.15
• 0b09384 Backport v5.0.6 change to v1 (#111)
• 10c05fc 1.1.14
• Additional commits viewable in compare view

Updates flatted from 3.3.3 to 3.4.4

Commits

• e6f5ca7 3.4.4
• 47f14fa removed E_STRICT from PHP
• 4050568 fixced go-lang issues in CI
• 4303f4d Merge pull request #101 from mfinelli/gocriticfixes
• 106735b updated package-lock.json
• 670a1bd 3.4.3
• 50a61a9 Fix #104 - allow null as replacer value
• 8aa64f4 solved crytical errors over dependencies
• b85577f Fix go-critic errors
• bb8c63c Merge pull request #100 from WebReflection/WebReflection-patch-1
• Additional commits viewable in compare view

Updates undici from 5.29.0 to 6.28.0

Release notes

Sourced from undici's releases.

v6.28.0

⚠️ Security fixes

• GHSA-m8rv-5g2x-5cg5: a malicious type property on a duck-typed blob-like HTTP/1.1 request body could inject CRLF sequences into the generated content-type header. Undici now coerces and validates the value before adding it to the request. Fixed by 740a0b7c.
• GHSA-8xcm-r25x-g524: the retry interceptor could expose a stale Content-Length after resuming a partial response, potentially causing downstream response desynchronization, hangs, or corruption. Undici now rejects partial responses whose Content-Length is inconsistent with Content-Range. Fixed by cba3a52a, with corrected fixtures in 4fd5a0c6.
• GHSA-v3r7-h72x-cjcm: unsanitized domain and unparsed values passed to setCookie() could inject cookie attributes. Undici now validates cookie domains, paths, and unparsed attributes more strictly. Fixed by af748404.

GHSA-4cwx-7wf7-3272 and GHSA-jr45-8vmc-qm54 affect the cache interceptor in Undici v7 and v8; Undici v6 is not in their affected version ranges.

Full Changelog: nodejs/undici@v6.27.0...v6.28.0

v6.27.0

⚠️ Security Release

This release line addresses 4 security advisories.

Action required: Upgrade to undici 6.27.0 or later.

npm install undici@^6.27.0

Note on patched version: the v6 fixes shipped in v6.27.0, not 6.26.0 — v6.26.0 contains only the chunked-EOF fix (#5308) and the version bump, none of the security fixes below.

The v6 line is not affected by the SOCKS5 advisories (GHSA-vmh5-mc38-953g, GHSA-hm92-r4w5-c3mj), the shared-cache disclosure (GHSA-pr7r-676h-xcf6), or the 8.x-only WebSocket regression (GHSA-38rv-x7px-6hhq).

Summary

Advisory	CVE	Severity (CVSS)	Fixed in	Fix commit
GHSA-vxpw-j846-p89q	CVE-2026-12151	High (7.5)	6.27.0	b7f252e7
GHSA-p88m-4jfj-68fv	CVE-2026-9679	Moderate (5.9)	6.27.0	25efa447
GHSA-g8m3-5g58-fq7m	CVE-2026-11525	Low (3.7)	6.27.0	25efa447
GHSA-35p6-xmwp-9g52	CVE-2026-6733	Low (3.7)	6.27.0	f4c31d60

---

High severity

WebSocket DoS via fragment count bypass — CVE-2026-12151

GHSA-vxpw-j846-p89q · CWE-400, CWE-770 Fix: b7f252e7 Backport WebSocket maxPayloadSize fixes (#5423, backported to v6 in #5428)

A malicious WebSocket server can stream a large number of small or empty continuation frames. Undici enforced a limit on cumulative payload size but did

... (truncated)

Commits

• 01a912e Bumped v6.28.0 (#5591)
• 481ecfc Use Node 22 and npm 11 to release
• 740a0b7 fix: validate blob body content type
• 2698e49 fix: validate coerced header values for CRLF (#5579)
• 4fd5a0c test(retry): correct broken content-range fixtures in retry-handler.js
• cba3a52 fix(retry): reject partial content length mismatch
• af74840 fix: harden cookie domain, path, and unparsed attribute validation
• 551138c Bumped v6.27.0 (#5431)
• b7f252e Backport WebSocket maxPayloadSize fixes to v7.x (#5423) (#5428)
• 25efa44 fix(cookies): preserve values and parse SameSite strictly
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by GitHub Actions, a new releaser for undici since your current version.

Install script changes

This version modifies prepare script that runs during installation. Review the package contents before updating.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

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