What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-26
• Weakness: CWE-400

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.

Affected products

• apostrophecms apostrophe: before 4.34.0
• @apostrophecms import-export: before 3.7.1

References

• 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
• https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-9g7p-m758-rp72

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