AWS — Security Activity Report

Amazon Web Services (Security Bulletins)

Generated Jul 22, 2026Cohort: 9 vendors with ≥10 CVE advisoriesMethodology ↗

CVE Disclosure Volume

Total all-time: 106 CVEs with AWS advisories. Source: NVD CVE records joined with vendor advisory publish dates.

Severity Composition

↑ +10.1 pp

62.3% of AWS's 106 CVEs are CRITICAL or HIGH severity. Industry median: 52.2%. Source: NVD CVSS v3.1.

CRITICAL 8 (7.5%)HIGH 58 (54.7%)MEDIUM 40 (37.7%)

CISA KEV Listings

↑ +0.9 pp

2 of 106 AWS CVEs in the last 3 years are on CISA's Known Exploited Vulnerabilities catalog (1.9%). Industry median: 1.0%.

Source: CISA Known Exploited Vulnerabilities catalog (current snapshot). KEV listing means CISA observed active in-the-wild exploitation.

Vendor Patch Velocity

↓ -14.6 days

Median time from CVE disclosure to AWS advisory: <1 day (p25 <1 day – p75 1 day). Industry median: 15 days.

Sample size: 62 CVE→advisory pairs over the last 3 years. Source: vendor advisory published_at minus CVE published.

Top Recurring Weakness Classes

Most-frequently mapped CWEs across AWS's last 3 years of CVE disclosures. Source: NVD — CWE mapping per MITRE taxonomy.

CWE-78OS Command Injection8 CVEs
CWE-327Use of a Broken or Risky Cryptographic Algorithm6 CVEs
CWE-61UNIX Symbolic Link (Symlink) Following6 CVEs
CWE-787Out-of-bounds Write4 CVEs
CWE-125Out-of-bounds Read3 CVEs

Recent Security Advisories

Latest advisories published by AWS, straight from the vendor's own feed. Severity labels are the vendor's — scales differ across vendors.

2026-062-AWSHigh
Jul 21, 2026
CVE-2026-16317 and CVE-2026-16318: Issues with s2n-tls: an open-source implementation of the TLS/SSL protocols
CVE-2026-16318 CVE-2026-16317 vendor source ↗
2026-061-AWSHigh
Jul 21, 2026
CVE-2026-15957 - Uncontrolled recursion in smithy-rs generated JSON, CBOR, and XML deserializers allows unauthenticated remote denial of service via recursive shapes
CVE-2026-15957 vendor source ↗
2026-060-AWSHigh
Jul 17, 2026
CVE-2026-15415 - Path traversal and arbitrary file write in the workflow linters of aws-healthomics-mcp-server
CVE-2026-15415 vendor source ↗
2026-059-AWSHigh
Jul 17, 2026
CVE-2026-12283 - Issue with Athena Federated Query Synapse Connector
CVE-2026-12283 vendor source ↗
2026-057-AWS
Jul 16, 2026
CVE-2026-15895: OS command injection in jsii-diff in AWS jsii
CVE-2026-15895 vendor source ↗
2026-058-AWS
Jul 16, 2026
CVE-2026-15737 - Sensitive content disclosure via OpenTelemetry spans in AgentCore Python SDK
CVE-2026-15737 vendor source ↗
2026-056-AWS
Jul 15, 2026
CVE-2026-15746 - Credential disclosure in Strands Agents Tools elasticsearch_memory tool
CVE-2026-15746 vendor source ↗
2026-055-AWS
Jul 14, 2026
CVE-2026-15738 - Issue with AWS Load Balancer Controller Cross-Namespace Traffic Interception via HTTPRoute/GRPCRoute Priority Ordering
CVE-2026-15738 vendor source ↗

Full advisory archive: /pulse/vendor-advisories →

Data sources & corrections

NVD National Vulnerability Database (nvd.nist.gov) — CVE records + CVSS v3.1 severity
MITRE cvelistV5 (github.com/CVEProject/cvelistV5) — CNA-published CVE timestamps
CISA Known Exploited Vulnerabilities catalog (cisa.gov/known-exploited-vulnerabilities-catalog)
Vendor security advisories (RHSA, USN, MSRC, GHSA, etc.) — published_at timestamps
MITRE CWE taxonomy (cwe.mitre.org) — weakness class mappings

Snapshot generated Jul 22, 2026. Industry medians refresh every 6 hours; raw vendor counts are queried live on each request.

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