CVE-2024-26147: Helm's Missing YAML Content Leads To Panic
Vulnerability summary
CVE-2024-26147 is a high (CVSS 7.5) Use of Uninitialized Variable vulnerability in helm. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 60.5% of scored vulnerabilities.
Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 33Timeline
- 21-02-2024PublishedVulnerability first disclosed.
- 14-08-2024Last modifiedVulnerability information updated.
Description
Helm is a package manager for Charts for Kubernetes. Versions prior to 3.14.2 contain an uninitialized variable vulnerability when Helm parses index and plugin yaml files missing expected content. When either an `index.yaml` file or a plugins `plugin.yaml` file were missing all metadata a panic would occur in Helm. In the Helm SDK, this is found when using the `LoadIndexFile` or `DownloadIndexFile` functions in the `repo` package or the `LoadDir` function in the `plugin` package. For the Helm client this impacts functions around adding a repository and all Helm functions if a malicious plugin is added as Helm inspects all known plugins on each invocation. This issue has been resolved in Helm v3.14.2. If a malicious plugin has been added which is causing all Helm client commands to panic, the malicious plugin can be manually removed from the filesystem. If using Helm SDK versions prior to 3.14.2, calls to affected functions can use `recover` to catch the panic.
CVSS metrics
7 scores · 6 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · GoEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.93%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
Decrease -0.01 pp
From 0.93% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard27 products
- chartmuseum< 0.16.1-r3
- cilium-cli< 0.15.23-r2
- eksctl< 0.172.0-r1
- flux-helm-controller< 0.37.4-r2
- flux-helm-controller-iamguarded-compat< 0.37.4-r2
Wolfi24 products
- chartmuseum< 0.16.1-r3
- cilium-cli< 0.15.23-r2
- eksctl< 0.172.0-r1
- flux-helm-controller< 0.37.4-r2
- flux-helm-controller-iamguarded-compat< 0.37.4-r2
Opensuse3 products
- cmctl&distro=openSUSE Tumbleweed< 1.14.4-1.1
- helm&distro=openSUSE Tumbleweed< 3.14.2-1.1
- k9s&distro=openSUSE Tumbleweed< 0.32.4-2.1
Helm1 product
- helm< 3.14.2
Helm.sh/helm1 product
- v3< 3.14.2
Ubuntu1 product
- helmAll versions (No fix recorded)
6 vendors · 57 products
References
8 links- github.com/helm/helm/security/advisories/GHSA-r53h-jv2g-vpx6X Refsource CONFIRMREPORTAdvisoryWEBVendor Advisory
- github.com/helm/helm/commit/bb4cc9125503a923afb7988f3eb478722a8580afX Refsource MISCREPORTFIXWEBPatch
- github.com/helm/helmPACKAGE