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CVE-2026-9198

IBM Langflow Code Injection

9.8 CRITICALActively exploited (CISA KEV)EPSS 28.7%
  1. Published17 Jul 2026
  2. Added to CISA KEV4 Aug 2026
  3. Remediation due7 Aug 2026
Actively exploited (CISA KEV)

Langflow contains a code injection vulnerability that allows unauthenticated attackers to achieve full remote code execution on default Langflow deployments.

Added to KEV: 4 Aug 2026Federal remediation due: 7 Aug 2026

Description

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Langflow≥ 1.0.0 < 1.10.1

Remediation

Fixed in
Langflow≥ 1.10.1

References

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Frequently asked

Is CVE-2026-9198 being actively exploited?

Yes. CVE-2026-9198 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 4 Aug 2026.

How severe is CVE-2026-9198?

CVE-2026-9198 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 28.7% probability of exploitation.

Which products are affected by CVE-2026-9198?

Affected products include Langflow.

How do I fix CVE-2026-9198?

Upgrade affected software to a fixed version, for example Langflow 1.10.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-9198 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.