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CVE-2026-63308

Helm

Description

Helm through 4.2.3, fixed in commit ba6c9a2, contains a denial of service vulnerability in the Files.Lines template helper in pkg/engine/files.go that allows attackers to trigger an index out of range panic by including zero-length byte slices in chart files. Attackers can include empty files in Helm charts to cause deterministic render failures across template, install, upgrade, lint, and SDK Engine.Render operations.

CVSS 4.3EPSS 0.27499999999999997%Risk 0.44
View source
Published
2026-07-17 17:17:17
Affected versions
<4.2.3
Type
Critical software
Last modified
2026-07-30 18:11:32
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L