What is CVE-2026-70594?
Ghost is a Node.js content management system. From 2.2.0 until 6.54.1, Ghost Admin did not invalidate existing sessions on login which could have allowed for session fixation attacks. Successful exploitation would have required another vulnerability on the same domain where Ghost Admin was hosted. This issue is fixed in version 6.54.1.
The record classifies CVE-2026-70594 under weakness class CWE-384. Its CVSS v3 base vector states that the flaw is reachable from an adjacent network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, 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
- 6.7 — MEDIUM
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L - EPSS (FIRST)
- 0.1% probability of exploitation in the next 30 days, higher than 5.6% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 3.6/10 — 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-2026-70594 being exploited?
It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.
Affected products and versions
- TryGhost: Ghost
How to fix CVE-2026-70594
No vendor patch reference has been recorded for CVE-2026-70594 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-2026-70594
No threat campaign in the Threadlinqs corpus currently references CVE-2026-70594, 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. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.