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CISA Adds Critical Adobe Commerce and Brotli Vulnerabilities to KEV Catalog

CISA Adds Critical Adobe Commerce and Brotli Vulnerabilities to KEV Catalog

First seen 28 Oct 2026, 07:48 UTC • •

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ThreatCluster AI
ThreatCluster •October 28, 2026 at 08:47 UTC
  • •CISA added CVE-2026-48356 and CVE-2026-111497 to its KEV catalog on October 27, 2026.
  • •Adobe Commerce's vulnerability allows unrestricted file uploads, posing significant risks.
  • •Remediation for both vulnerabilities is due by November 10, 2026, despite existing patches.

On October 27, 2026, CISA added two vulnerabilities to its Known Exploited Vulnerabilities Catalog, affecting Adobe Commerce (CVE-2026-48356) and Google Brotli (CVE-2026-111497). The Adobe Commerce flaw allows unrestricted file uploads, while the Brotli vulnerability involves unchecked error handling in a decoder. Both vulnerabilities have critical CVSS scores of 9.3 and 9.2, respectively, and are due for remediation by November 10, 2026. Although patches are available, the urgency is heightened as organizations must ensure they are applied and verified. The Adobe vulnerability has been known since July 2026, while the Brotli flaw was disclosed in October 2026. The exploitation status for both vulnerabilities has been updated, indicating they are now prioritized for remediation. This update emphasizes the need for organizations to reassess their vulnerability management processes.

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Timeline

2026-07-14
CVE-2026-48356 published
Adobe Commerce vulnerability disclosed with a CVSS score of 9.3, allowing unrestricted file uploads.
Remio.Ai
2026-10-22
CVE-2026-111497 published
Google Brotli vulnerability disclosed with a CVSS score of 9.2, involving unchecked error handling.
Defendwork
2026-10-26
CVE-2026-109618 and CVE-2026-109619 added to KEV
CISA added two PHP vulnerabilities to the KEV catalog, marking them as actively exploited.
Defendwork
2026-10-27
CVE-2026-48356 and CVE-2026-111497 added to KEV
CISA updated its KEV catalog to include critical vulnerabilities in Adobe Commerce and Google Brotli.
Remio.Ai

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Common questions

What are the CVEs involved?
The vulnerabilities are CVE-2026-48356 in Adobe Commerce and CVE-2026-111497 in Google Brotli.
What is the remediation deadline?
Organizations must remediate these vulnerabilities by November 10, 2026.
Are there existing patches?
Yes, patches for both vulnerabilities have been released, but they must be deployed and verified.