CVE-2026-6543
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 · uneditedIBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.
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 confidenceCommand injection vulnerability in IBM Langflow Desktop versions 1.0.0 through 1.8.4 allows unauthenticated attackers to execute arbitrary system commands with the privileges of the user running the application, potentially exposing sensitive environment variables, credentials, and enabling lateral movement within internal networks.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data>= 1.0.0, <= 1.8.4CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify if IBM Langflow Desktop is installedSearch for Langflow Desktop installation directories, check common installation paths for desktop applications, or use system package managers if applicable.Affected if IBM Langflow Desktop is found installed on the system
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Determine the installed version of Langflow DesktopLocate the version information in the application installation directory, About dialog, or version file included with the software.Affected if The installed version is 1.0.0 through 1.8.4 inclusive
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Check if Langflow Desktop is currently runningUse task manager, process monitor, or command-line process listing tools to check for active Langflow Desktop processes.Affected if Langflow Desktop is running and the version is within the affected range 1.0.0 to 1.8.4
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Inspect for unexpected child processes spawned by LangflowMonitor the process tree for any child processes launched by the Langflow Desktop process that are not part of normal operation.Affected if Arbitrary or unexpected child processes are executing under the Langflow Desktop process
A user is affected if IBM Langflow Desktop version 1.0.0 through 1.8.4 is installed and running, enabling command injection attacks that can execute arbitrary system 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 dataUpgrade IBM Langflow Desktop to a version newer than 1.8.4; if patching is not immediately possible, minimize the application's exposure to untrusted networks and avoid running it with elevated privileges.
- Consultation3.0 h
- Implementation3.0 h
- Testing2.0 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 $2,880.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-6543 — 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-2026-6543 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
- No spam, self-promotion, credentials, or personal data