Vulnerability-Lookup

GHSA-564H-HX6X-WG47

Vulnerability from github – Published: 2026-04-21 21:31 – Updated: 2026-04-21 21:31

Details

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.

Severity ?

8.2 (High)


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

8.3 (High)


                  
                    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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-6823"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-21T21:16:48Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-564h-hx6x-wg47",
  "modified": "2026-04-21T21:31:28Z",
  "published": "2026-04-21T21:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6823"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HKUDS/OpenHarness/pull/147"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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": "CVSS_V4"
    }
  ]
}

CVE-2026-6823 (GCVE-0-2026-6823)

Vulnerability from cvelistv5 – Published: 2026-04-21 20:36 – Updated: 2026-04-22 13:50

Title

HKUDS OpenHarness Insecure Default Remote Channel Allowlist

Summary

Severity ?

8.3 (High)


                        
                          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

8.2 (High)


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

CWE

CWE-276 - Incorrect Default Permissions

Assigner

VulnCheck

References

URL

Tags

	https://github.com/HKUDS/OpenHarness/pull/147	patch
	https://github.com/HKUDS/OpenHarness/commit/fab40…	patch
	https://github.com/HKUDS/OpenHarness/releases/tag…	third-party-advisory
	https://www.vulncheck.com/advisories/hkuds-openha…	third-party-advisory

Impacted products

	Vendor	Product	Version
	HKUDS	OpenHarness	Affected: 0 , < PR #147 (git)

Date Public ?

2026-04-21 21:00

Credits

Chia Min Jun Lennon

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-564H-HX6X-WG47

CVE-2026-6823 (GCVE-0-2026-6823)

Tags

Sightings

Nomenclature