CVE-2026-113711
CVE-2026-113711 · ApostropheCMS: Unauthenticated resource exhaustion via pre-auth aposBigUpload processing in @apostrophecms/import-export
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.5 · High · EPSS 0.6% · Public exploit · Fix available
- Published
- Updated
Stack: node
Affected products and versions
apostrophe
- Versions
- < 4.33.0: Affected
No fix published
import-export
- Versions
- < 3.7.0: Affected
No fix published
apostrophe npm
- Affected ranges
- SEMVER: < 4.33.0
Update to 4.33.0
@apostrophecms/import-export npm
- Affected ranges
- SEMVER: < 3.7.0
Update to 3.7.0
Original sources
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-86wm-68pq-5jwq
- https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
- https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
- https://github.com/apostrophecms/apostrophe/releases/tag/[email protected]
- https://nvd.nist.gov/vuln/detail/CVE-2026-113711