CISA KEV adds Adobe Commerce, Brotli flaws
CISA added two actively exploited vulnerabilities—Adobe Commerce/Magento file upload and Google Brotli unchecked return value—to its KEV catalog.
Sourcecisa.gov — open the original
What to check
- Applies to
- The 2 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- CISA lists CVE-2026-111497 and CVE-2026-48356 as exploited in the wild.
CISA has added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on confirmed evidence of active exploitation. The first, CVE-2026-48356, affects Adobe Commerce and Magento and involves unrestricted upload of files with dangerous types, which can allow attackers to upload malicious files (e.g., web shells) to compromise e-commerce platforms. The second, CVE-2026-111497, is an unchecked return value vulnerability in Google Brotli, a widely used compression library embedded in numerous software products and browsers, potentially leading to memory corruption or other downstream issues when exploited.
Under Binding Operational Directive (BOD) 26-04, Federal Civilian Executive Branch (FCEB) agencies are required to remediate KEV-listed vulnerabilities that grant total control of publicly exposed assets on a prioritized basis, and to check for prior compromise before patching. While the directive is mandatory only for FCEB agencies, CISA recommends all organizations—particularly those running Adobe Commerce/Magento storefronts or software embedding the Brotli library—treat these as high-priority patching items given confirmed in-the-wild exploitation. Defenders should inventory affected assets, apply vendor patches promptly, and review logs for signs of compromise predating remediation.
Mentioned in this report
Source reporting: https://www.cisa.gov/news-events/alerts/2026/10/27/cisa-adds-two-known-exploited-vulnerabilities-catalog
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