Command InjectionWeakness · CWE-77

CVE-2026-30352

CRITICAL · 9.8 CVSS v3.1 Published 2026-04-27
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
A remote code execution (RCE) vulnerability in the /devserver/start endpoint of leonvanzyl autocoder commit 79d02a allows attackers to execute arbitrary code via providing a crafted command parameter.

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 · moderate confidence

Remote code execution vulnerability in leonvanzyl autocoder's /devserver/start endpoint allows attackers to execute arbitrary commands by providing a crafted command parameter, likely due to insufficient input sanitization before passing to a system call.

MitigationImplement strict input validation and sanitization for the command parameter, or refactor to avoid shell execution entirely by using parameterized methods; additionally, restrict network access to the /devserver/start endpoint.

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. Identify if leonvanzyl autocoder is installed
    Search for the autocoder package in your system using: pip list | grep -i autocoder, or check for project directories containing 'autocoder' in the name, or look for service processes named 'autocoder'
    Affected if leonvanzyl autocoder package or service is present on the system
  2. Verify the /devserver endpoint exists
    Inspect the autocoder codebase for routes or endpoints matching '/devserver/start' or '/devserver' - check route definition files or API endpoint configurations
    Affected if The /devserver/start endpoint is defined in the application's route configuration
  3. Check if the devserver feature is enabled
    Review autocoder configuration files (e.g., config.json, settings.py, .env) for any devserver-related settings or flags that enable the start endpoint
    Affected if Devserver functionality is enabled in the configuration
  4. Determine network exposure of the endpoint
    Check if the service is bound to a network interface (0.0.0.0 or public IP) rather than localhost only - inspect startup parameters, docker-compose ports, or reverse proxy configurations
    Affected if The endpoint is accessible from network addresses other than localhost/127.0.0.1
  5. Inspect input handling on the command parameter
    Review the source code handling the /devserver/start endpoint to determine if the command parameter is passed directly to shell execution functions (system, exec, popen) without sanitization
    Affected if The command parameter is directly concatenated into a shell command without validation

You are affected if leonvanzyl autocoder is installed with the /devserver/start endpoint enabled and accessible over the network, and the application passes the command parameter directly to shell execution without input validation.

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 for the command parameter, or refactor to avoid shell execution entirely by using parameterized methods; additionally, restrict network access to the /devserver/start endpoint.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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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-2026-30352 in production — separate from our analysis above.

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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
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