CVE-2026-90451CWE-1392

CVE-2026-90451

Medium · published September 12, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
15.6
In the wild
Unconfirmed
What it is

An example environment-configuration file ships with a fixed, publicly-known secret value used to sign authentication cookies for a bundled packet-analysis component. A deployment that copies this example file into active configuration without running the setup routine that regenerates the value will use the known default, allowing an attacker aware of the default to forge valid authentication cookies for that component.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
8.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00251 · 15.6th percentile
Weakness
CWE-1392 · Use of Default Credentials
Published
2026-09-12T02:16Z
References (2)
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json · [email protected]https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01 · [email protected]
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 0%
    epss
  • 11 SEP 21:50Z
    An example environment-configuration file ships with a fixed, publicly-known secret value used to sign authentication cookies for a bundled packet-analysis…
    cvelistv5