CVE-2026-63308: helm helm

Helm Files.Lines Denial of Service via Empty Chart Files

CVSS 5.3 MediumEPSS 0.0049 · 42nd percentile

Published by the CVE Program (CNA: VulnCheck) at 17 Jul 2026, 16:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
helm	helm pkg:golang/helm.sh/helm/v4	affected 4.2.3 and earlier semver unaffected ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017 git Other versions: unaffected

Identifiers

CVE-2026-63308

CNA

VulnCheck

Weakness (CWE)

CWE-129

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
4.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0049, the 42nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 17 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/helm/helm/pull/32290 issue-tracking
github.com/helm/helm/commit/ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017 patch
www.vulncheck.com/advisories/helm-files-lines-denial-of-service-via-empty-chart-files third-party-advisory
github.com/helm/helm/issues/32279 technical-descriptionexploit

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.