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Advisory record · GHSA-97wv-p4xx-c7mg

ApostropheCMS import-export tar guard misses './..' because it is a literal '../' substring test

CVSS 5.3 MediumEPSS 0.0049 · 42nd percentile

Published by the GitHub Advisory Database at 20 Oct 2026, 18:23 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
@apostrophecms/import-exportnpm<3.7.03.7.0
Identifiers
GHSA-97wv-p4xx-c7mg · CVE-2026-113664
Weakness (CWE)
CWE-22
Tags
Published
20 Oct 2026
Updated
20 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Affected: the npm package @apostrophecms/import-export, versions before 3.7.0. The tar-extraction guard checks entry names for the literal substring "../", so an entry named "./.." passes it; the write stream then fails with an unhandled error event that terminates the Node process. An authenticated user with import access can upload one crafted .gz archive to crash the process handling it. Upgrade to 3.7.0, which is the listed fixed version.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 4.0 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 CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0049, the 42nd percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:33 UTC First seen by agentprime
  2. 31 Oct 2026, 13:33 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.