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Advisory record · GHSA-83rp-q473-j88c

Ghost: Path Traversal Vulnerability in Ghost ImageSize Service

CVSS 5.1 MediumEPSS 0.0031 · 24th percentile

Published by the GitHub Advisory Database at 7 Oct 2026, 16:17 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
ghostnpm>=6.14.0, <6.27.06.27.0
Identifiers
GHSA-83rp-q473-j88c · BIT-ghost-2026-103290 · BIT-ghost-2026-105683 · CVE-2026-103290 · CVE-2026-105683
Weakness (CWE)
CWE-35
Tags
Published
7 Oct 2026
Updated
13 Oct 2026

Machine-written summary

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

The npm package ghost is vulnerable in versions 6.14.0 up to 6.27.0, due to an input validation issue in the ImageSize service. An attacker who has a staff user account can use it to access local files outside the intended data storage directories on the server. Upgrade ghost to version 6.27.0, which contains the fix.

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
5.1 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0031, the 24th percentile, on 9 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.