OS Command InjectionWeakness · CWE-78

CVE-2026-6349

CRITICAL · 9.8 CVSS v3.1 Published 2026-04-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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
The  iSherlock developed by HGiga  has an OS Command Injection vulnerability, allowing unauthenticated local attackers to inject arbitrary OS commands and execute them on the server.

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 · high confidence

iSherlock by HGiga contains an OS Command Injection vulnerability that allows unauthenticated attackers to inject and execute arbitrary OS commands on the server.

MitigationImplement strict input validation and sanitization on all user-controlled parameters used in system calls, and replace dynamic command construction with parameterized APIs or whitelisted execution methods.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm iSherlock installation
    Locate iSherlock installation directories or check for iSherlock services/processes on the system (e.g., review installed applications, running services, or startup configurations)
    Affected if iSherlock by HGiga is installed on the system
  2. Identify iSherlock version
    Check the installed version of iSherlock using vendor-provided methods (e.g., about dialog, version file, or system inventory tools) and compare against any officially documented version ranges
    Affected if The installed version falls within an affected version range (if such ranges become known)
  3. Verify web interface exposure
    Determine if the iSherlock web interface is accessible from the network (check firewall rules, listening ports, and exposed URLs)
    Affected if The iSherlock web interface is network-accessible to untrusted users
  4. Check for unauthenticated access points
    Review the iSherlock web application for parameters or endpoints that process user input without requiring authentication
    Affected if There are unauthenticated endpoints or parameters that accept user input
  5. Inspect for command execution logs
    Review iSherlock and system logs for signs of suspicious command execution, unusual processes, or evidence of injection attempts
    Affected if Logs show unexpected command executions or injection patterns originating from iSherlock input fields

Your environment is affected if iSherlock by HGiga is installed and its web interface is accessible to unauthenticated users without additional access controls preventing command injection.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict input validation and sanitization on all user-controlled parameters used in system calls, and replace dynamic command construction with parameterized APIs or whitelisted execution methods.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
17.0 hours of engineering $3,000
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,800.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-6349 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2026-6349 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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
  • No spam, self-promotion, credentials, or personal data