CVE-2026-35206
CVE-2026-35206 is a medium-severity vulnerability in Helm with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 4.4)
- CVSS v4: 4.8
- EPSS exploit prediction: 0% (10th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-21100
- Weakness: CWE-22
- Affected product: Helm
- Published:
- Last modified:
Description
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 3.20.2 and 4.1.4.
Frequently asked questions
- What is CVE-2026-35206?
- 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 3.20.2 and 4.1.4.
- How severe is CVE-2026-35206?
- CVE-2026-35206 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability low.
- Is CVE-2026-35206 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-35206?
- CVE-2026-35206 affects Helm. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-35206?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-35206 have an EU (EUVD) identifier?
- Yes. CVE-2026-35206 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21100.
- When was CVE-2026-35206 published?
- CVE-2026-35206 was published on 2026-04-09 and last updated on 2026-06-17.
References
- https://github.com/helm/helm/commit/4e7994d4467182f535b6797c94b5b0e994a91436
- https://github.com/helm/helm/releases/tag/v4.1.4
- https://github.com/helm/helm/security/advisories/GHSA-hr2v-4r36-88hr
Affected products (1)
- cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*
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