CVE-2026-53976

CRITICAL

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.

CVSS v3.1 Score

9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Published: 8/6/2026Modified: 8/6/2026

Related Intelligence (1)

CRITICALVulnerability

NVD CRITICAL: CVE-2026-53976 — OpenChamber 1.11.7 contains a path traversal vulnerability in the file-serving e...

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 isPath

CVE-2026-53976
NIST NVD

References (3)

https://github.com/openchamber/openchamberhttps://github.com/openchamber/openchamber/commit/f1b9506132faf6c564a2694c7f33b94421a49b4ahttps://www.vulncheck.com/advisories/openchamber-path-traversal-file-read-via-allowoutsideworkspace-parameter