CVE-2026-54448
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk38th percentile - higher than 38% of all known CVEs
Summary
Trivy before version 0.71.0, when scanning Helm chart archives (.tgz), uses a custom tar unpacker that reads each entry with io.ReadAll(tr) without size limit. An attacker can place a malicious .tgz file in the scanned path that decompresses to gigabytes, causing the Trivy process to be killed by the OS OOM killer.
Risk Assessment
The risk is a denial of service (DoS) attack on the Trivy scanner, which can prevent container image scanning and vulnerability detection in CI/CD or production environments.
Recommendation
Immediately update Trivy to version 0.71.0 or later, which includes a fix that limits the size of data read during tar archive extraction.
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Original NVD description (English source)
Trivy is a security scanner. Prior to 0.71.0, when Trivy scans a Helm chart archive (.tgz), its custom tar unpacker reads each entry with io.ReadAll(tr) and no size limit. An attacker who can place a malicious .tgz file in the scanned path can craft a small compressed archive that decompresses to gigabytes, causing the Trivy process to be killed by the OS OOM killer. This vulnerability is fixed in 0.71.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS