CVE-2026-35206: Helm is a package manager for Charts for Kubernetes

Q: How urgent is CVE-2026-35206?

Priority 23/100. On your watchlist

Routine

MEDIUM 4.4WATCHLISTUPGRADE

CVE-2026-35206 is a medium-severity flaw (CVSS 4.4) affecting helm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Helm is a package manager for Charts for Kubernetes. In Helm versions <=3.20.1 and <=4.1.3, a specially crafted Chart will cause helm pull --untar [chart URL | repo/chartname] to write the Chart's contents to the immediate output directory (as defaulted to the current working directory; or as given by the --destination and --untardir flags), rather than the expected output directory suffixed by the chart's name. This vulnerability is fixed in 3.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	4.4 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-04-09
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: helm

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-09 21:16 UTCPublished CVE record published
2026-06-17 10:40 UTCUpdated Record last modified

helm helm UPGRADE

Affected: < 3.20.2 · >= 4.0.0 and < 4.1.4

Fixed in: 3.20.2, 4.1.4

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy helm || rpm -q helm || helm --version

2. UPGRADE to 3.20.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade helm

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade helm

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison helm sudo apt install helm=<VERSION_BEFORE_4.0.0> sudo apt-mark hold helm

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list helm sudo dnf downgrade helm-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add helm

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35206?

helm: upgrade to 3.20.2, 4.1.4. Exact commands for each OS are on this page.

Is CVE-2026-35206 being exploited?

CVE-2026-35206 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35206 affect?

CVE-2026-35206 affects helm. Severity is medium (CVSS 4.4). Helm is a package manager for Charts for Kubernetes. In Helm versions <=3.20.1 and <=4.1.3, a specially crafted Chart will cause helm pull --untar [chart URL | repo/chartname] to write the Chart's contents to the immediate output directory

How urgent is CVE-2026-35206?

Priority 23/100. On your watchlist

Software pages

Kubernetes vulnerabilities · Helm vulnerabilities

Related CVEs

CVE-2026-63308 MEDIUM 4.3 UPGRADE Helm through 4.2.3, fixed in commit ba6c9a2, contains a denial of service vulnerability in the Files.Lines tem
CVE-2026-35205 HIGH 7.8 UPGRADE Helm is a package manager for Charts for Kubernetes
CVE-2026-35204 HIGH 8.6 UPGRADE Helm is a package manager for Charts for Kubernetes

References

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