CVE-2026-105646CWE-1333

CVE-2026-105646

Medium · published October 5, 2026

CVSS v3.1
4.9
EPSS
0%
Percentile
24.5
In the wild
Unconfirmed
What it is

Ghost is a Node.js content management system. From 4.0.0 until 6.67.0, a crafted content import file could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00327 · 24.5th percentile
Weakness
CWE-1333 · Inefficient Regular Expression Complexity
Published
2026-10-05T23:17Z
References (4)
https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce · [email protected]https://github.com/TryGhost/Ghost/pull/31058 · [email protected]https://github.com/TryGhost/Ghost/releases/tag/v6.66.0 · [email protected]https://github.com/TryGhost/Ghost/security/advisories/GHSA-fwh9-qg68-vxp4 · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 05 OCT 18:58Z
    Ghost: Regular Expression Denial of Service in Content Import
    cvelistv5
  • 05 OCT 18:58Z
    Ghost: Regular Expression Denial of Service in Content Import
    cvelistv5