CVE-2026-53976: OpenChamber 0 through 1.11.7

CVE-2026-53976. CVSS 3.1 base score 9.1 (CRITICAL, Vendor/CNA). EPSS 0.02612 (percentile 0.85291), scored 22-Oct-2026.

Affected technology

OpenChamber · 0 through 1.11.7
Bohdan Triapitsyn

Description’s affected range: 1.11.7

Component: Not specified by the source

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

What an attacker can do

Unauthenticated remote attackers can read arbitrary files by supplying the allowOutsideWorkspace=true query parameter alongside an absolute path, bypassing the workspace boundary check in resolveReadPathFromContext. Vendor/CNA’s CVSS 4.0 assessment (base score 9.3/10) rates confidentiality and integrity impact as high; availability impact as none.

Published 24-Oct-2026 01:43 UTC

CWE: CWE-22
CCR priority: 37.1 /100 (P4)
CVSS 3.1: 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · Vendor/CNA
EPSS: 0.02612 · percentile 0.85291 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-53976.html