CVE-2026-53976: OpenChamber 1.11.7 Path Traversal File Read via allowOutsideWorkspace Parameter

Published Aug 6, 2026
·
Updated

OpenChamber 1.11.7 contains a path traversal vulnerability in the file-serving endpoints /api/fs/read, /api/fs/stat, and /api/fs/raw that allows unauthenticated remote attackers to read arbitrary files by supplying the allowOutsideWorkspace=true query parameter alongside an absolute path, bypassing the workspace boundary check in resolveReadPathFromContext. Attackers can exploit the vacuous isPathWithinRoot guard to read sensitive files such as the JWT signing secret, SSH private keys, API credentials, and environment variables, enabling full authentication bypass by forging session cookies on password-protected deployments.

Affected Software

1 affected component
OpenChamber=1.11.7

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade OpenChamber to a version that resolves this vulnerability.

    Fixed in 1.11.7Patch OpenChamber 1.11.7 Path Traversal File Read via allowOutsideWorkspace Parameter
  2. Configuration

    Ensure requests to /api/fs/read, /api/fs/stat, and /api/fs/raw do not allow allowOutsideWorkspace=true (deny or strip this query parameter) so absolute paths cannot bypass the workspace boundary check in resolveReadPathFromContext.

    OpenChamber file-serving endpoints (/api/fs/read, /api/fs/stat, /api/fs/raw) allowOutsideWorkspace query parameter = false

Event History

Aug 6, 2026
CVE Published
via MITRE·02:24 PM
Data Sourced
via MITRE·02:24 PM
DescriptionSeverityWeakness
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CVE-2026-53976 - OpenChamber 1.11.7 Path Traversal File Read via allowOutsideWorkspace Parameter - SecAlerts