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Digest · Friday

Security digest: December 5, 2025

1 known exploited (cisa kev) addition and 1 critical advisory.

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Take stock

  • Do you run any of these? Meta React Server Components. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2025-12-12.
  • PyPI: 1 critical advisory (langflow). Check with pip-audit (or: pip show <package>).
  • None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

Known exploited (CISA KEV) 1

Added to CISA’s catalog on this day: confirmed exploitation in the wild. Due date = CISA’s deadline for US federal agencies.

CVEProduct and flawCISA due
CVE-2025-55182Meta React Server Components
Meta React Server Components Remote Code Execution Vulnerability Ransomware		2025-12-12

Critical advisories by ecosystem 1

GitHub-reviewed advisories rated critical, published this day (Pacific time).

PyPI 1

Check: pip-audit (or: pip show <package>)