CVE-2026-113711
High
Description
ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0 of ApostropheCMS and 3.7.0 of the import-export module, import routes invoke bigUploadMiddleware without an early authorize callback, allowing unauthenticated requests to perform upload initialization, chunk storage, temporary processing, and attacker-declared cleanup work before the later user check rejects the import. This issue is fixed in ApostropheCMS 4.33.0 and import-export 3.7.0.
SeverityHigh
CVSS7.5
Exploit probability—
ProductApostrophe
PublishedOct 20, 2026
First seenOct 20, 2026
How to fix
Update
- apostrophe4.33.0 or later
- @apostrophecms/import-export3.7.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apostrophenpm | v < 4.33.0 | 4.33.0 |
| @apostrophecms/import-exportnpm | v < 3.7.0 | 3.7.0 |
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