CVE-2026-53976

OpenChamber 1.11.7 Path Traversal File Read via allowOutsideWorkspace Parameter

State: Published
Severity: 9.3 Critical
Published: Aug 6, 2026
Updated: Aug 6, 2026
Reserved: Jun 11, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	VulnCheck

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
OpenChamberBohdan Triapitsyn	1.11.7 and earlierAffected

References

Product Advisoryproduct
Patch Commitpatch
https://www.vulncheck.com/advisories/openchamber-path-traversal-file-read-via-allowoutsideworkspace-parameterthird-party-advisory

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