CVE-2026-112956mediumCWE-863

CVE-2026-112956: medium-severity vulnerability in apostrophecms apostrophe

ApostropheCMS: Archive duplicate continuation lets contributors overwrite published content

Published

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.3%
exploitation probability
0.3%top 73% of all CVEs
observed exploitation
nono source reports it
ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.1 of the import-export module, duplicate-import continuation accepts client-controlled replacement choices without binding them to a user-owned server-side analysis or authorizing the canonical target. On an import-enabled localized type, a contributor with draft editing authority can cross the publication boundary by selecting a published document for replacement, although the current assessment is based on remediation review rather than a repeated end-to-end reproduction. This issue is fixed in version 3.7.1.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected products
@apostrophecms · mport-exportapostrophecms · apostrophe
Related CVEs — apostrophecms apostrophe

In the same product, most dangerous first.

CVE-2026-113658HIGHApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directoryEPSS 0.6%CVE-2026-113711HIGHApostropheCMS: Unauthenticated resource exhaustion via pre-auth aposBigUpload processing in @apostrophecms/import-exportEPSS 0.6%CVE-2026-112953MEDIUMApostropheCMS: Exposure of Sensitive Information via predictable export filenamesEPSS 0.6%CVE-2026-112955MEDIUMApostropheCMS: Import archives can exhaust server storage and deny serviceEPSS 0.5%CVE-2026-33888MEDIUMApostropheCMS: publicApiProjection Bypass via `project` Query Builder in Piece-Type REST APIEPSS 0.5%CVE-2026-113664MEDIUMApostropheCMS import-export tar guard misses './..' because it is a literal '../' substring testEPSS 0.5%
References
https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5eahttps://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/import-export@3.7.1https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-jf5h-36mg-rp6x