CVE-2026-7873
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 OSS 1.0.0 through 1.10.0 allows authenticated attackers to execute arbitrary OS commands and read sensitive files including credentials, enabling complete system compromise and lateral movement.
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 confidenceIBM Langflow OSS versions 1.0.0 through 1.10.0 contains an OS command injection and arbitrary file read vulnerability that allows authenticated attackers to execute arbitrary operating system commands and access sensitive files containing credentials, leading to complete system compromise.
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, <= 1.10.0CVSS 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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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 installed Langflow versionCheck the installed version of Langflow by querying the package manager, inspecting the application metadata, or checking the startup logs. Common methods include: running 'pip show langflow' or 'pip list | grep langflow' if installed via pip, or checking the application's version endpoint if the web interface is accessible.Affected if The installed version is 1.0.0 through 1.10.0 inclusive, meaning the version falls within the affected range.
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Verify network exposure of Langflow interfaceDetermine whether the Langflow web interface is accessible from network locations other than localhost. Check firewall rules, reverse proxy configurations, and the binding address in the Langflow service configuration.Affected if The Langflow interface is exposed to untrusted networks without proper network segmentation or access controls.
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Confirm authentication is enforcedReview the authentication configuration for the Langflow instance. Check if user accounts are configured, whether login is required to access the application, and verify that default credentials are not in use.Affected if Authentication is disabled, weak, or uses default credentials, allowing unauthenticated attackers to reach the vulnerable functionality.
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Inspect for signs of exploitationExamine system logs, application logs, and process history for evidence of unexpected command execution or unauthorized file access. Look for unusual processes, unexpected network connections, or modifications to sensitive files.Affected if Logs or system state show evidence of arbitrary command execution or unauthorized file reads that were not performed by legitimate administrators.
A system is affected if it runs Langflow OSS version 1.0.0 through 1.10.0 AND has its interface accessible to attackers who can bypass or circumvent authentication controls.
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.
dbcve · scopedUpgrade IBM Langflow OSS to a version beyond 1.10.0 that addresses this vulnerability. If immediate upgrade is not possible, restrict network access to the Langflow interface and review authentication controls.
Langflow 1.10.1 or later (or the latest stable release)
- 1. Backup your Langflow instance and any custom flows or configurations before upgrading.
- 2. Stop the Langflow service to prevent active connections during upgrade.
- 3. Upgrade Langflow to version 1.10.1 or later using your package manager (pip install langflow --upgrade or equivalent for your deployment).
- 4. Verify the upgrade was successful by checking the installed version (langflow --version or check via API).
- 5. Restart the Langflow service.
- 6. Test that normal functionality works and that the code injection vulnerability is mitigated.
- 7. Review authentication configurations and consider implementing additional access controls if not already in place.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-7873 — 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-2026-7873 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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