build(deps): bump i18next from 26.3.1 to 26.3.4

[dependabot]

Bumps i18next from 26.3.1 to 26.3.4.

Release notes

Sourced from i18next's releases.

v26.3.4

• fix(security): deepExtend (used by addResourceBundle(..., deep, overwrite)) no longer recurses into inherited properties. It checked key existence with the in operator, which walks the prototype chain, so a source key matching an inherited built-in (e.g. hasOwnProperty, toString) caused recursion into the shared Object.prototype function and, with overwrite: true, could overwrite e.g. Object.prototype.hasOwnProperty.call with a non-callable value — corrupting a shared built-in process-wide (DoS). Existence is now checked with Object.prototype.hasOwnProperty.call, so such keys are copied as plain own data instead. This complements the existing __proto__/constructor guard and is also strictly more correct for an own-property merge. Only affects applications that pass attacker-controlled data with deep: true and overwrite: true; no standard backend/integration does this. Distinct from CVE-2026-48713 / CVE-2026-48714 (different packages, setPath mechanism). Thanks to zx (Jace) for the responsible disclosure.

v26.3.3

• fix(types): selector t($ => $.arr, { returnObjects: true, context }) on a JSON array of heterogeneous objects now preserves each element's full shape (e.g. { transKey1: string; transKey2: string }[]) instead of collapsing to a union of partial element types. Two type-level causes: (1) FilterKeys evaluated the whole array element type at once, so keyof (A | B) only saw the keys common to every element — it now distributes over the object union and filters each element independently; (2) when TypeScript merges mismatched array element types it injects phantom optional undefined keys (e.g. transKey1_withContext?: undefined on elements that don't define it), which the context-detection helpers mistook for real context variants — they now skip keys typed as undefined. Also adds a dedicated context + returnObjects: true selector overload using const Fn + ReturnType<Fn>, so Target is no longer collapsed to unknown via ApplyTarget. Resolves Problem 1 of #2398 (Problem 2 was already fixed on master). Thanks @​sauravgupta-dotcom (#2438). Fixes #2398.

v26.3.2

• fix: chained formatters with a parenthesised option that contains the format separator (e.g. join(separator: ', ')) now work at any position in the chain, not just first. Previously the comma-in-parens reassembly only repaired formats[0], so {{v, uppercase, join(separator: ', ')}} split the join(...) option on the inner comma and never rejoined it, producing corrupt output. Replaced the first-position-only repair with a position-independent pass that re-joins fragments until each open paren closes. Thanks @​spokodev (#2437).

Changelog

Sourced from i18next's changelog.

26.3.4

• fix(security): deepExtend (used by addResourceBundle(..., deep, overwrite)) no longer recurses into inherited properties. It checked key existence with the in operator, which walks the prototype chain, so a source key matching an inherited built-in (e.g. hasOwnProperty, toString) caused recursion into the shared Object.prototype function and, with overwrite: true, could overwrite e.g. Object.prototype.hasOwnProperty.call with a non-callable value — corrupting a shared built-in process-wide (DoS). Existence is now checked with Object.prototype.hasOwnProperty.call, so such keys are copied as plain own data instead. This complements the existing __proto__/constructor guard and is also strictly more correct for an own-property merge. Only affects applications that pass attacker-controlled data with deep: true and overwrite: true; no standard backend/integration does this. Distinct from CVE-2026-48713 / CVE-2026-48714 (different packages, setPath mechanism). See advisory GHSA-6jcc-5g8w-32mx, CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H). Thanks to zx (Jace) @​manus-use for the responsible disclosure.

26.3.3

• fix(types): selector t($ => $.arr, { returnObjects: true, context }) on a JSON array of heterogeneous objects now preserves each element's full shape (e.g. { transKey1: string; transKey2: string }[]) instead of collapsing to a union of partial element types. Two type-level causes: (1) FilterKeys evaluated the whole array element type at once, so keyof (A | B) only saw the keys common to every element — it now distributes over the object union and filters each element independently; (2) when TypeScript merges mismatched array element types it injects phantom optional undefined keys (e.g. transKey1_withContext?: undefined on elements that don't define it), which the context-detection helpers mistook for real context variants — they now skip keys typed as undefined. Also adds a dedicated context + returnObjects: true selector overload using const Fn + ReturnType<Fn>, so Target is no longer collapsed to unknown via ApplyTarget. Resolves Problem 1 of #2398 (Problem 2 was already fixed on master). Thanks @​sauravgupta-dotcom (#2438). Fixes #2398.

26.3.2

• fix: chained formatters with a parenthesised option that contains the format separator (e.g. join(separator: ', ')) now work at any position in the chain, not just first. Previously the comma-in-parens reassembly only repaired formats[0], so {{v, uppercase, join(separator: ', ')}} split the join(...) option on the inner comma and never rejoined it, producing corrupt output. Replaced the first-position-only repair with a position-independent pass that re-joins fragments until each open paren closes. Thanks @​spokodev (#2437).

Commits

• 817ede5 26.3.4
• 46d0dd8 build
• 642137b fix(security): prevent deepExtend from recursing into inherited built-ins
• cf7080d 26.3.3
• 05fd7be build
• cc0bd80 changelog: 26.3.3 entry for #2438
• 9cbfa63 fix(types): preserve selector returnObjects shape with context (#2438)
• 3b04712 26.3.2
• fc20f5d changelog: 26.3.2 entry for #2437
• 6901e04 fix: reassemble comma-in-parens formatters at any chain position (#2437)
• Additional commits viewable in compare view

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​i18next@​26.3.1 ⏵ 26.3.4

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