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Vulnerability Details :

CVE-2026-6823

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-21 Apr, 2026 | 20:36
Updated At-22 Apr, 2026 | 13:50
Rejected At-
Credits

HKUDS OpenHarness Insecure Default Remote Channel Allowlist

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:21 Apr, 2026 | 20:36
Updated At:22 Apr, 2026 | 13:50
Rejected At:
▼CVE Numbering Authority (CNA)
HKUDS OpenHarness Insecure Default Remote Channel Allowlist

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.

Affected Products
Vendor
HKUDS
Product
OpenHarness
Default Status
unaffected
Versions
Affected
  • From 0 before PR #147 (git)
Problem Types
TypeCWE IDDescription
CWECWE-276CWE-276 Incorrect Default Permissions
Type: CWE
CWE ID: CWE-276
Description: CWE-276 Incorrect Default Permissions
Metrics
VersionBase scoreBase severityVector
4.08.3HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
3.18.2HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Version: 4.0
Base score: 8.3
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Version: 3.1
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Chia Min Jun Lennon
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/HKUDS/OpenHarness/pull/147
patch
https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d
patch
https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7
third-party-advisory
https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist
third-party-advisory
Hyperlink: https://github.com/HKUDS/OpenHarness/pull/147
Resource:
patch
Hyperlink: https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d
Resource:
patch
Hyperlink: https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7
Resource:
third-party-advisory
Hyperlink: https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/HKUDS/OpenHarness/pull/147
exploit
Hyperlink: https://github.com/HKUDS/OpenHarness/pull/147
Resource:
exploit
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:disclosure@vulncheck.com
Published At:21 Apr, 2026 | 21:16
Updated At:22 Apr, 2026 | 21:23

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.08.3HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Secondary3.18.2HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Type: Secondary
Version: 4.0
Base score: 8.3
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Secondary
Version: 3.1
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-276Secondarydisclosure@vulncheck.com
CWE ID: CWE-276
Type: Secondary
Source: disclosure@vulncheck.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203ddisclosure@vulncheck.com
N/A
https://github.com/HKUDS/OpenHarness/pull/147disclosure@vulncheck.com
N/A
https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7disclosure@vulncheck.com
N/A
https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlistdisclosure@vulncheck.com
N/A
https://github.com/HKUDS/OpenHarness/pull/147134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Hyperlink: https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/HKUDS/OpenHarness/pull/147
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/HKUDS/OpenHarness/pull/147
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

2Records found
CVE-2026-6819
Matching Score-6
Assigner-VulnCheck
ShareView Details
Matching Score-6
Assigner-VulnCheck
CVSS Score-8.7||HIGH
EPSS-0.03% / 10.38%
||
7 Day CHG~0.00%
Published-21 Apr, 2026 | 19:41
Updated-22 Apr, 2026 | 21:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
HKUDS OpenHarness Plugin Management Command Exposure

HKUDS OpenHarness prior to PR #156 remediation exposes plugin lifecycle commands including /plugin install, /plugin enable, /plugin disable, and /reload-plugins to remote senders by default. Attackers who gain access through the channel layer can remotely manage plugin trust and activation state, enabling unauthorized plugin installation and activation on the system.

Action-Not Available
Vendor-HKUDS
Product-OpenHarness
CWE ID-CWE-276
Incorrect Default Permissions
CVE-2020-12118
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-8.2||HIGH
EPSS-0.30% / 53.73%
||
7 Day CHG~0.00%
Published-23 Apr, 2020 | 21:28
Updated-04 Aug, 2024 | 11:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.

Action-Not Available
Vendor-binancen/a
Product-tss-libn/a
CWE ID-CWE-276
Incorrect Default Permissions
Details not found