CVE-2026-30616
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 · uneditedJaaz 1.0.30 contains a remote code execution vulnerability in its MCP STDIO command execution handling. A remote attacker can send crafted network requests to the network-accessible Jaaz application, causing attacker-controlled commands to be executed on the server. Successful exploitation results in arbitrary command execution within the context of the Jaaz service, potentially allowing full compromise of the affected system.
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 confidenceJaaz 1.0.30 has a remote code execution vulnerability in its MCP STDIO command execution handling. A remote attacker can send crafted network requests to the network-accessible Jaaz application, causing attacker-controlled commands to execute on the server with the privileges of the Jaaz service.
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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 checksWork through these to decide whether this CVE applies to you.
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Confirm Jaaz installationLocate the Jaaz application on the system by checking for processes named 'jaaz' or looking in common installation directoriesAffected if Jaaz is found running or installed on the system
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Identify Jaaz versionRun the command to check the installed Jaaz version (for example: jaaz --version, jaaz -v, or check version files in the installation directory) and compare it to 1.0.30Affected if The installed version is exactly 1.0.30 or falls within the affected version range around 1.0.30
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Verify MCP STDIO functionality is enabledCheck the Jaaz configuration files or settings for the presence and status of MCP STDIO command execution features (look for settings like mcp_stdio, stdio_mode, or command_execution_enabled)Affected if MCP STDIO functionality is enabled or present in the configuration
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Determine network accessibilityReview network binding configuration to check if Jaaz is listening on network interfaces (check config files or running network listeners for ports Jaaz uses)Affected if Jaaz is bound to a network-accessible IP address rather than localhost only
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Inspect command execution logsReview Jaaz application logs for any recent or suspicious command execution entries, particularly those showing unexpected or external command invocationsAffected if Unexpected or unauthorized command executions appear in the logs
The environment is affected if Jaaz version 1.0.30 is installed with MCP STDIO functionality enabled and the application is network-accessible, allowing remote attackers to execute arbitrary commands.
Generated from the published advisory. Verify against your own configuration.
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 dataRestrict network access to the Jaaz application, disable or secure the MCP STDIO functionality until a patch is available, and implement strict input validation on all command execution paths.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-30616 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-30616 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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