P4Verified

CVE-2026-82450: bookstack 0 to before 26.05.4

CVE-2026-82450. CVSS 3.1 base score 8.8 (HIGH, Vendor/CNA). EPSS 0.00999 (percentile 0.61558), scored 2026-10-06.

Affected technology

bookstack · 0 to before 26.05.4
bookstackapp

Description’s affected range: before 26.05.4

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could run code remotely. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality, integrity and availability impact as high.

Published 2026-10-08 17:34:46.414125+00:00

CWE: CWE-434
CCR priority: 35.4 /100 (P4)
CVSS 3.1: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00999 · percentile 0.61642 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-82450.html