CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
Readest is a modern, feature-rich ebook reader designed for seamless cross-platform access and an intuitive reading experience. Prior to 0.11.10, the apps/readest-app/src/pages/api/storage/upload.ts route constructed an object key from the authenticated user's identifier and a client-controlled fileName without rejecting path separators or parent-directory traversal. In the R2 backend, apps/readest-app/src/utils/r2.ts placed that key into a new Request URL before signing it, and URL normalization collapsed parent-directory components so the resulting presigned PUT could escape the caller's namespace. An authenticated attacker who knew a target user identifier and book hash could overwrite or poison that user's stored book object and corrupt the associated file_key metadata; the exact cross-tenant escape was verified for the R2 backend. This issue is fixed in version 0.11.10.
Засегнати продукти
- readest readest: < 0.11.10
Вид слабост
История
- 4 ноември 2026 Публикувано
Други уязвимости в readest readest
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-57565
- https://nvd.nist.gov/vuln/detail/CVE-2026-57565
- https://github.com/readest/readest/security/advisories/GHSA-mfmj-2frf-vhgw
- https://github.com/readest/readest/pull/4638
- https://github.com/readest/readest/commit/495783d04516d05b2eb10f8f8bad297d436b36de
- https://github.com/readest/readest/releases/tag/v0.11.10