CVE-2026-40502Public exploitNetwork attack vector

Remote permission-mode escalation via gateway command dispatch

Published Apr 16, 2026 · Updated Apr 16, 2026

Missing authorization in OpenHarness before commit dd1d235 allows remote authenticated users to change the runtime permission mode. The ohmo gateway dispatches slash commands from inbound chat through the shared registry without distinguishing local-only administrative handlers from remote-safe commands. Chat access to a configured remote channel is required; /permissions full_auto disables the running instance's normal approval boundary.

CVSS severity8.7
High
EPSS probability1.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in OpenHarness before commit dd1d235 allows remote authenticated users to change the runtime permission mode. The ohmo gateway dispatches slash commands from inbound chat through the shared registry without distinguishing local-only administrative handlers from remote-safe commands. Chat access to a configured remote channel is required; /permissions full_auto disables the running instance's normal approval boundary.

The record

CVE
CVE-2026-40502
Published
Apr 16, 2026
Updated
Apr 16, 2026
Vendor
Data Intelligence Lab @ HKU
Product
OpenHarness
Classifications
CWE-862, T1562.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <dd1d235450dd987b20bff01b7bfb02fe8620a0af

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Data Intelligence Lab @ HKU · OpenHarnessversion=0 <dd1d235450dd987b20bff01b7bfb02fe8620a0af

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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