CVE-2026-100602: ClawHub Changelog Preview Information Disclosure via Authorization Bypass
ClawHub (openclaw/clawhub application/backend) contains a missing authorization check in the changelog preview feature. A signed-in caller can invoke the public skills:generateChangelogPreview action for a skill they are not authorized to access; the previous version is read without the file-read authorization enforced on normal content access, and up to 8,000 characters of quarantined content may be submitted to the AI provider and reflected in the preview returned to the caller, disclosing restricted skill content. The issue was confirmed at revision cbfee7343ddc867316dd9b3de6fa8856730f9f41; the complete historical affected range was not established. It is fixed by PR #3682, included in revision 8c2de6c506bb4efabe3f0c2ffb8370b9e23d4650, which was deployed to clawhub.ai on 2026-09-11; self-hosted deployments should update to that revision or a later descendant. The npm CLI and OpenClaw runtime are separate products and are not affected.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
openclaw/clawhubto a version that resolves this vulnerability.Patch PR #3682, included in revision 8c2de6c506bb4efabe3f0c2ffb8370b9e23d4650
Event History
Frequently Asked Questions
Which deployments need remediation?
Self-hosted OpenClaw ClawHub deployments are affected if they run a revision before 8c2de6c506bb4efabe3f0c2ffb8370b9e23d4650. The fix was deployed to clawhub.ai on 2026-09-11; the npm CLI and OpenClaw runtime are separate products and are not affected.
What access does an attacker need?
An attacker needs to be signed in and able to invoke the public skills:generateChangelogPreview action. They can target a skill they are not authorized to access; no user interaction is required.
What information could be exposed?
The prior version of restricted or quarantined skill content can be read without the normal file-read authorization check. Up to 8,000 characters may be sent to the AI provider and reflected in the preview returned to the caller.
How can self-hosted administrators remediate this?
Update ClawHub to revision 8c2de6c506bb4efabe3f0c2ffb8370b9e23d4650 or a later descendant, which includes PR #3682. The complete historical affected revision range was not established.