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Vulnerability · Published Jun 25, 2026 · Assigned by GitHub_M

CVE-2026-54448Trivy: Helm chart tar bomb causes OOM via unbounded io.ReadAll in parser

Medium 6.9

In plain English

A medium-severity resource allocation without limits in trivy from aquasecurity. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.4%top 61.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/aquasecurity/trivy0.71.0GHSA-q3fv-x8vg-qqm4
Gogithub.com/aquasecurity/trivy0.71.0GO-2026-5983

Affected products (as reported)

VendorProductVersions
aquasecurity trivy < 0.71.0

Weakness: CWE-770, CWE-789 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References