CVE-2026-54448

Trivy: Helm chart tar bomb causes OOM via unbounded io.ReadAll in parser

MEDIUM
6.5
CVSS Score
Published: June 25, 2026 at 04:27 PM UTC
Updated: October 25, 2026 at 10:10 PM UTC
2 products affected across 2 vendorsTrivyTrivy

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.71.0
Affected range stops below 0.71.0, so it looks safe — our inference, not a vendor statement
v < 0.71.0
Affected range stops below 0.71.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_CONFIRMThird Party Advisory
Source: cverecord
https://github.com/aquasecurity/trivy/security/advisories/GHSA-q3fv-x8vg-qqm4
x_refsource_MISCIssue TrackingThird Party Advisory
Source: cverecord
https://github.com/aquasecurity/trivy/pull/10718

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-770CWE-789

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