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CISA KEV remediation deadline for Langflow

Public Sector Action
First reported
Last updated
Happening score
H score 36
1 unique sources, 1 articles

Summary

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CISA added CVE-2026-33017 to the Known Exploited Vulnerabilities list and ordered federal agencies to patch, mitigate, or stop using Langflow by April 8, 2026. The action raises the response bar for a public-sector constituency facing an actively exploited flaw that can enable remote code execution.

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H score59 First: 15.05.2026 08:28 Last: 15.05.2026 08:28 Sources 1

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CISA KEV directive for CVE-2026-20133

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H score36 First: 21.04.2026 15:30 Last: 21.04.2026 15:30 Sources 1

About this happening: On Monday, April 21, 2026, CISA added CVE-2026-20133 to the KEV Catalog and ordered FCEB agencies to secure their networks by Friday, April 24. The directi...

Open Happening

Timeline

  1. 26.03.2026 21:17 1 articles · 3mo ago

    Langflow exploitation begins

    Exploitation Observed

    Hackers began exploiting CVE-2026-33017 against Langflow on March 19, using details from the vulnerability advisory to develop attacks without public proof-of-concept code.

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  2. 26.03.2026 21:17 1 articles · 3mo ago

    CISA warns on CVE-2026-33017

    Initial Disclosure

    CISA warned that CVE-2026-33017 is being actively exploited in Langflow 1.8.1 and earlier, added the flaw to the Known Exploited Vulnerabilities list, and described it as a code injection issue that can enable remote code execution through a single crafted HTTP request. The advisory said no public proof-of-concept exploit code existed at the time and recommended upgrading to Langflow 1.9.0 or later or disabling or restricting the vulnerable endpoint.

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  3. 26.03.2026 21:17 2 articles · 3mo ago

    Federal Langflow remediation deadline

    Legal Policy Action Update

    Covered federal agencies must apply security updates or mitigations, or stop using Langflow, by April 8, 2026 under CISA's remediation deadline for the actively exploited flaw.

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