# CVE-2026-70590 — TryGhost Ghost

> As of 2026-08-05, CVE-2026-70590 is a MEDIUM-severity vulnerability in TryGhost Ghost, CVSS v3.1 4.8, EPSS 0.1% (9.3th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-70590 as of 2026-08-05; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-05

## What is CVE-2026-70590?

Ghost is a Node.js content management system. Prior to 6.54.1, any staff-level user was able to leak the hashed passwords of other staff users through the Ghost Admin API. An offline password-guessing attack against the hashes could lead to account takeover if successful, but Device Verification should have prevented an attacker from logging in with a recovered password. Depending on the database used, leaked hashes may not have had the correct casing for all characters, increasing the difficulty of a password-guessing attack. This issue is fixed in version 6.54.1.

The record classifies CVE-2026-70590 under weakness class [CWE-200](https://intel.threadlinqs.com/cwe/CWE-200). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-privilege credentials, needs a user to take an action first, and has high impact on integrity. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 62 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.8 — MEDIUM (`CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 9.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-04, last modified 2026-08-05

## Is CVE-2026-70590 being exploited?

It currently carries a trending score of 32 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [TryGhost](https://intel.threadlinqs.com/vendors/tryghost): Ghost

Affected software packages:

- `npm:ghost` — patched in 6.54.1

## How to fix CVE-2026-70590

Fixed versions are recorded for 1 package: npm:ghost 6.54.1. No vendor patch reference has been recorded for CVE-2026-70590 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-70590

No threat campaign in the Threadlinqs corpus currently references CVE-2026-70590, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-08-06. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com](https://github.com/TryGhost/Ghost/security/advisories/GHSA-jm22-3w23-5q7w)

**Other references**

- [github.com](https://github.com/TryGhost/Ghost/pull/29628)
- [github.com (63c31fad7e473caa62d8fbb4651a04a2a62b5d00)](https://github.com/TryGhost/Ghost/commit/63c31fad7e473caa62d8fbb4651a04a2a62b5d00)
- [github.com (v6.54)](https://github.com/TryGhost/Ghost/releases/tag/v6.54.1)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-70590
Full detection coverage and IOCs for threats exploiting CVE-2026-70590 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp