OpenharnessApplication · Hkuds

CVE-2026-6823

HIGH · 8.2 CVSS v3.1 Published 2026-04-21
Fix available
A fix is available. Upgrade to 0.1.7 or later.
See remediation →
91/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
HKUDS OpenHarness prior to PR #147 remediation contains an insecure default configuration vulnerability where remote channels inherit allow_from = ["*"] permitting arbitrary remote senders to pass admission checks. Attackers who can reach the configured channel can bypass access controls and reach host-backed agent runtimes, potentially leading to unauthorized file disclosure and read access through default-enabled read-only tools.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-276

Files, directories, or resources ship with permissions more open than they need to be, so unintended users can read or modify them. Attackers look for exactly these loose defaults. Remediation means tightening permissions to the minimum required and verifying them at install and at runtime.

General guidance for the incorrect default permissions class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
OpenharnessApplication
Affected:< 0.1.7

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 0.1.7 or later
Fixed in 0.1.7
Vendor patch github.com →
Recommended fix High confidence

0.1.7

  1. 1. Identify the currently installed OpenHarness version by checking the project dependencies or running version command
  2. 2. Upgrade OpenHarness to version 0.1.7 or later which contains the fix from PR #147
  3. 3. After upgrading, verify that remote channels no longer have the insecure allow_from = ["*"] default configuration
  4. 4. Review and configure appropriate allow_from restrictions for any remote channels to maintain secure access controls
  5. 5. Test that legitimate remote senders can still authenticate properly with the new restrictions in place
Caveat The upgrade removes the permissive allow_from = ["*"] default; any remote channel configurations relying on this default will need explicit allow_from rules configured

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,250. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-6823 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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