P4Verified

CVE-2026-53582: core < 26.1.10

CVE-2026-53582. CVSS 3.1 base score 7.1 (HIGH, Vendor/CNA).

Affected technology

core · < 26.1.10
opnsense

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

A user with CA Manager or Certificate Manager privileges can submit a crafted refid and repeatedly retrieve the object to obtain a boolean refcount oracle, allowing values in config.xml to be recovered character by character. Vendor/CNA’s CVSS 3.1 assessment (base score 7.1/10) rates confidentiality impact as high; integrity impact as none; availability impact as low.

Published 15-Oct-2026 18:54 UTC

CWE: CWE-91, CWE-643
CCR priority: 28.4 /100 (P4)
CVSS 3.1: 7.1 /10 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L · Vendor/CNA
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-15 18:53:01.928580+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-53582.html