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- CWE-22
CVE-2026-57565
Readest: Cross-tenant object write via unsanitized fileName in /api/storage/upload (object-key path traversal)
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- 5 Kas 2026
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Özet
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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.
Etkilenen sürümler1 yazılım
| Yazılım | Etkilenen | Düzeltildiği sürüm |
|---|---|---|
| readest | < 0.11.10 | 0.11.10 |
Kaynaklar6 kaynak
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