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Vulnerabilities / CVE-2026-9198

CVE-2026-9198

Published 2026-07-17 · published (not yet in NVD)

CVE-2026-9198

Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-08-04, with a fix-by date of 2026-08-07. Patch it first.

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

9.8 CRITICAL
CVSS 3.1 · CNA
29%
chance of exploitation in the next 30 days (EPSS; higher than 98% of CVEs)

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

Scores

Affected products

  • IBM Langflow OSS: 1.0.0 to ≤ 1.10.0

Weakness: CWE-94

1 references (advisories, patches, write-ups)

Sources: CVE.org, OSV.dev, FIRST EPSS. Missing ones did not answer or have no record yet.

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