CVE-2026-6823
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.
CVSS
- Version: 4.0
- 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
- Base score: 8.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.58%
- Percentile among all scored CVEs: 46
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1190Exploit Public-Facing Applicationinitial access85 % - Primary impact
T1552.007Container APIcredential access80 % - Secondary impact
T1005Data from Local Systemcollection75 %
Acceso remoto a canales sin autenticación (allow_from=["*"]) permite lectura no autorizada de archivos y datos de agentes; vector CVSS AV:N/AC:L sin privilegios confirma T1190.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
CWEs
- CWE-276
References
- https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d
- https://github.com/HKUDS/OpenHarness/pull/147
- https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7
- https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist
- https://github.com/HKUDS/OpenHarness/pull/147
Raw JSON (NVD)
Show
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