chore(deps): bump i18next from 26.4.2 to 26.4.5

[dependabot]

Bumps i18next from 26.4.2 to 26.4.5.

Release notes

Sourced from i18next's releases.

v26.4.5

• fix: hasLoadedNamespace(ns, { lng }) no longer stays false forever when the passed in lng is loaded under another code, or not at all. It checked the load state of the raw lng, but loadLanguages() stores a language under its resolved code (de-ch → de-CH, de-CH → de with load: 'languageOnly') and skips a lng outside supportedLngs entirely (only the fallback gets loaded), so that state never got set. react-i18next's useTranslation(ns, { lng }) then never became ready: with useSuspense it kept throwing an already resolved promise and React retried forever (100% CPU, SSR never finished), without it the load effect re-rendered in a loop. It now checks the code the language is actually loaded under, and for a lng outside supportedLngs only waits for the fallback, which is also what t() resolves to. Calls without lng and the precheck (react-i18next's bindI18n: 'languageChanging') are unchanged (react-i18next#1934).

v26.4.4

• fix(security): the nesting regexp no longer backtracks exponentially (ReDoS) on an unclosed $t(. Its repeated group had overlapping alternatives ([^()"']+ inside (?:...)*?, and inside parentheses [^()] also matched quotes), so a string containing $t( without a closing ) made the engine try every way to split the text: about 2x the runtime per extra character, and a ~25 character value hung t() for minutes. With the default config this was reachable through any interpolated value (t('greet', { name: '$t(aaaaaaaaaaaaaaaaaaaaaaaa' })): escaping does not touch $, t or (, and the skipOnVariables check runs the regexp on the interpolated result, so nest: false did not help either. Every alternative now starts with a different character (plain char, ", ' or (), so there is only one way to match and the cost is linear. Quoted strings and one level of parentheses in nesting options keep working (#2336). The only difference: a lone " or ' inside unquoted parentheses within $t(...) is no longer matched. Affects 25.3.3 to 26.4.3. Thanks to Anisetti Chaitanya Eshwar Prasad for the responsible disclosure.
• fix(security): nest() now resolves $t(...) in a single pass and no longer nests text that came out of a resolved value. Every nested lookup reset the shared nesting regexp, so the loop started over from the beginning of the string after each match. That had two effects. First, a $t(...) inside a variable that the nested lookup deliberately kept literal (default skipOnVariables: true) was resolved anyway by the outer loop: with outer: 'A $t(inner) B' and inner: 'Hi {{name}}', t('outer', { name: '$t(secret)' }) rendered the secret translation. It now stays A Hi $t(secret) B, the same as without the outer nesting; with skipOnVariables: false it is still resolved. Second, the cost was quadratic when an unclosed $t( preceded many nestings, which matters when an app passes untrusted input as the key itself (t(userInput)): 20,000 nestings took ~1.4 s, now ~25 ms. The resolved value is now sliced into the result instead of going through String.replace, so $&, $`, $' and $$ stay literal as before (26.4.2).

v26.4.3

• perf: ResourceStore.hasLanguageSomeTranslations() no longer enumerates every key of a large bundle on each call. It ran Object.keys() on the whole bundle just to learn whether it had at least one key, and init() / changeLanguage() reach it three times per instance (once while picking the language, twice via setResolvedLanguage()). With large flat bundles and one i18next instance per SSR request reusing the same resources, that showed up as measurable CPU work before any t() call. Bundle objects already found non-empty are now remembered in a WeakSet shared across instances, so later checks are O(1): 2,000 inits with a 6,800-key bundle went from ~750 ms to ~20 ms, the same as a one-key bundle. Only the non-empty result is cached. No API removes single keys from a bundle, so a non-empty bundle stays non-empty, and empty bundles are re-checked every time, so keys added later (backend loads, addResource, addResourceBundle, direct or silent changes) count right away. The only edge case: a bundle emptied by hand with delete on every key while it is still in the store keeps counting as having translations; use removeResourceBundle() for that. Thanks @​dmchoi77 for the detailed report (#2449).

Changelog

Sourced from i18next's changelog.

26.4.5

• fix: hasLoadedNamespace(ns, { lng }) no longer stays false forever when the passed in lng is loaded under another code, or not at all. It checked the load state of the raw lng, but loadLanguages() stores a language under its resolved code (de-ch → de-CH, de-CH → de with load: 'languageOnly') and skips a lng outside supportedLngs entirely (only the fallback gets loaded), so that state never got set. react-i18next's useTranslation(ns, { lng }) then never became ready: with useSuspense it kept throwing an already resolved promise and React retried forever (100% CPU, SSR never finished), without it the load effect re-rendered in a loop. It now checks the code the language is actually loaded under, and for a lng outside supportedLngs only waits for the fallback, which is also what t() resolves to. Calls without lng and the precheck (react-i18next's bindI18n: 'languageChanging') are unchanged (react-i18next#1934).

26.4.4

• fix(security): the nesting regexp no longer backtracks exponentially (ReDoS) on an unclosed $t(. Its repeated group had overlapping alternatives ([^()"']+ inside (?:...)*?, and inside parentheses [^()] also matched quotes), so a string containing $t( without a closing ) made the engine try every way to split the text: about 2x the runtime per extra character, and a ~25 character value hung t() for minutes. With the default config this was reachable through any interpolated value (t('greet', { name: '$t(aaaaaaaaaaaaaaaaaaaaaaaa' })): escaping does not touch $, t or (, and the skipOnVariables check runs the regexp on the interpolated result, so nest: false did not help either. Every alternative now starts with a different character (plain char, ", ' or (), so there is only one way to match and the cost is linear. Quoted strings and one level of parentheses in nesting options keep working (#2336). The only difference: a lone " or ' inside unquoted parentheses within $t(...) is no longer matched. Affects 25.3.3 to 26.4.3. See advisory GHSA-5jr9-983r-c8x4, CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Thanks to Anisetti Chaitanya Eshwar Prasad for the responsible disclosure.
• fix(security): nest() now resolves $t(...) in a single pass and no longer nests text that came out of a resolved value. Every nested lookup reset the shared nesting regexp, so the loop started over from the beginning of the string after each match. That had two effects. First, a $t(...) inside a variable that the nested lookup deliberately kept literal (default skipOnVariables: true) was resolved anyway by the outer loop: with outer: 'A $t(inner) B' and inner: 'Hi {{name}}', t('outer', { name: '$t(secret)' }) rendered the secret translation. It now stays A Hi $t(secret) B, the same as without the outer nesting; with skipOnVariables: false it is still resolved. Second, the cost was quadratic when an unclosed $t( preceded many nestings, which matters when an app passes untrusted input as the key itself (t(userInput)): 20,000 nestings took ~1.4 s, now ~25 ms. The resolved value is now sliced into the result instead of going through String.replace, so $&, $`, $' and $$ stay literal as before (26.4.2).

26.4.3

• perf: ResourceStore.hasLanguageSomeTranslations() no longer enumerates every key of a large bundle on each call. It ran Object.keys() on the whole bundle just to learn whether it had at least one key, and init() / changeLanguage() reach it three times per instance (once while picking the language, twice via setResolvedLanguage()). With large flat bundles and one i18next instance per SSR request reusing the same resources, that showed up as measurable CPU work before any t() call. Bundle objects already found non-empty are now remembered in a WeakSet shared across instances, so later checks are O(1): 2,000 inits with a 6,800-key bundle went from ~750 ms to ~20 ms, the same as a one-key bundle. Only the non-empty result is cached. No API removes single keys from a bundle, so a non-empty bundle stays non-empty, and empty bundles are re-checked every time, so keys added later (backend loads, addResource, addResourceBundle, direct or silent changes) count right away. The only edge case: a bundle emptied by hand with delete on every key while it is still in the store keeps counting as having translations; use removeResourceBundle() for that. Thanks @​dmchoi77 for the detailed report (#2449).

Commits

• ce7b9cf 26.4.5
• 4d4c607 build
• 8f8651e fix: hasLoadedNamespace with a passed in lng checks the code it is actually l...
• 15d0b9d changelog: link GHSA-5jr9-983r-c8x4 in v26.4.4
• 3693965 test: make the nest() linearity check robust under coverage
• f6a7746 26.4.4
• 25988d5 build
• c9f8eba fix(security): nesting regexp ReDoS on unclosed $t( and single-pass nest(), c...
• 0d2845a 26.4.3
• a2dbe15 build
• Additional commits viewable in compare view

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