Mar 26, 2026 • CISA
CISA Adds One Known Exploited Vulnerability to Catalog
CISA has added CVE-2026-33634, a vulnerability affecting Aqua Security Trivy, to its Known Exploited Vulnerabilities (KEV) Catalog due to evidence of active...
Executive Summary
CISA has added CVE-2026-33634, a vulnerability affecting Aqua Security Trivy, to its Known Exploited Vulnerabilities (KEV) Catalog due to evidence of active exploitation. The vulnerability involves embedded malicious code within Trivy, a widely-used container security scanning tool, posing significant risks to federal enterprise networks. This vulnerability represents a supply chain threat vector commonly exploited by malicious cyber actors. Under Binding Operational Directive (BOD) 22-01, Federal Civilian Executive Branch agencies must remediate this vulnerability by the specified deadline. While BOD 22-01 applies specifically to FCEB agencies, CISA strongly advises all organizations using Trivy to prioritize timely remediation as part of their vulnerability management practices to reduce exposure to potential cyberattacks.
Summary
CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-33634 Aqua Security Trivy Embedded Malicious Code Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria .
Published Analysis
CISA has added CVE-2026-33634, a vulnerability affecting Aqua Security Trivy, to its Known Exploited Vulnerabilities (KEV) Catalog due to evidence of active exploitation. The vulnerability involves embedded malicious code within Trivy, a widely-used container security scanning tool, posing significant risks to federal enterprise networks. This vulnerability represents a supply chain threat vector commonly exploited by malicious cyber actors. Under Binding Operational Directive (BOD) 22-01, Federal Civilian Executive Branch agencies must remediate this vulnerability by the specified deadline. While BOD 22-01 applies specifically to FCEB agencies, CISA strongly advises all organizations using Trivy to prioritize timely remediation as part of their vulnerability management practices to reduce exposure to potential cyberattacks. CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-33634 Aqua Security Trivy Embedded Malicious Code Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria . CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-33634 Aqua Security Trivy Embedded Malicious Code Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria .
Linked Entities
- CVE-2026-33634