---
id: CVE-2026-113664
title: >-
  ApostropheCMS import-export tar guard misses './..' because it is a literal
  '../' substring test
summary: >-
  ApostropheCMS is an open-source Node.js content management system. Prior to
  3.7.0 of the import-export module, an authenticated importer can submit a tar
  entry whose normalized destination targets a directory while bypassing the
  literal …
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-22
vendor: apostrophecms
product: apostrophe
affected:
  - apostrophe < 4.33.0
  - import-export < 3.7.0
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-23T01:55:46.296990Z'
exploitAvailable: true
published: '2026-10-20'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T01:56:12.528Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113664'
references:
  - url: >-
      https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-97wv-p4xx-c7mg
    label: >-
      https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-97wv-p4xx-c7mg
  - url: >-
      https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
    label: >-
      https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
  - url: >-
      https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
    label: >-
      https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
  - url: >-
      https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/import-export@3.7.0
    label: >-
      https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/import-export@3.7.0
  - url: 'https://github.com/advisories/GHSA-97wv-p4xx-c7mg'
tags:
  - cve.org
  - exploit-available
  - ghsa
  - npm
epss: 0.00485
epssPercentile: 0.41898
aliases:
  - GHSA-97wv-p4xx-c7mg
ecosystem: npm
patched:
  - '@apostrophecms/import-export 3.7.0'
ingestedAt: '2026-10-20T18:14:37.222Z'
---

## Overview

ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.0 of the import-export module, an authenticated importer can submit a tar entry whose normalized destination targets a directory while bypassing the literal parent-path substring guard. Opening that directory as a write stream emits an unhandled filesystem error that can terminate the Node.js process; the source establishes this static primitive but not an end-to-end exploit or controlled arbitrary file read or write. This issue is fixed in version 3.7.0.

## Affected

- `apostrophe < 4.33.0`
- `import-export < 3.7.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-113664)

Affected packages:

- `@apostrophecms/import-export < 3.7.0`

Patched in:

- `@apostrophecms/import-export 3.7.0`

Source: https://github.com/advisories/GHSA-97wv-p4xx-c7mg