{"answers":{"affected":"1 open source package ship an affected version, including helm. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-63308 exists.","fix":"Upgrade helm to 4.2.4 or later.","what":"CVE-2026-63308 is a medium-severity denial of service vulnerability in helm, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-63308 and fix it if it is affected.\n\nWhat it is: CVE-2026-63308 is a medium-severity denial of service vulnerability in helm, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-63308 exists.\n\nAffected packages and fixed versions:\n- helm (Bitnami): affected all versions; fixed in 4.2.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-63308/ (Markdown: https://insights.sbomify.com/CVE-2026-63308/index.md)","id":"CVE-2026-63308","markdown":"https://insights.sbomify.com/CVE-2026-63308/index.md","name":"CVE-2026-63308","record":{"aliases":["AZL-92991","BIT-helm-2026-63308","GHSA-5gjx-96wq-c8r2","MINI-3h5r-v57f-2v9h","MINI-4c6c-3qrw-2xh6","MINI-p7jr-v694-qfc7","MINI-wf7p-g9fq-5h3j","RHSA-2026:55180","openSUSE-SU-2026:11386-1","openSUSE-SU-2026:11387-1"],"analysis":{"component_type":"developer_tool","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Helm package manager","requires_auth":"none","summary":"Attackers can cause Helm to crash by including empty files in charts, disrupting template rendering and deployment operations.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"helm","vendor":"helm"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-129","name":"Improper Validation of Array Index"}],"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.","ecosystems":["Bitnami","Red Hat:hummingbird:1","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Helm Files.Lines Denial of Service via Empty Chart Files","id":"CVE-2026-63308","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":4,"next":{"headline":"SurrealDB \u003c 3.1.5 Information Disclosure via ORDER BY","id":"CVE-2026-63309"},"packages":[{"ecosystem":"Bitnami","fixed":["4.2.4"],"introduced":["0"],"last_affected":[],"package":"helm","purl":"pkg:bitnami/helm","source":"BIT-helm-2026-63308"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:3.21.4-0.1.hum1"],"introduced":["0"],"last_affected":[],"package":"helm3","purl":"pkg:rpm/redhat/helm3","source":"RHSA-2026:55180"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["4.2.3-4.1"],"introduced":["0"],"last_affected":[],"package":"helm","purl":"pkg:rpm/opensuse/helm\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11386-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.21.3-4.1"],"introduced":["0"],"last_affected":[],"package":"helm3","purl":"pkg:rpm/opensuse/helm3\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:11387-1"}],"prev":{"headline":"Chat2DB \u003c 5.3.0 Insecure Direct Object Reference via GET /api/connection/datasource","id":"CVE-2026-63307"},"products":["helm"],"published":"2026-07-17","related":[{"cvss_score":9.8,"headline":"Helm Unsafe Link Following","id":"CVE-2019-18658","kev_date_added":null,"published":"2019-11-12"},{"cvss_score":9.8,"headline":"Helm Improper Certificate Validation","id":"CVE-2019-1010275","kev_date_added":null,"published":"2019-07-17"},{"cvss_score":9.1,"headline":"Information disclosure in n/a","id":"CVE-2019-25210","kev_date_added":null,"published":"2024-03-03"},{"cvss_score":8.5,"headline":"Helm Chart Dependency Updating With Malicious Chart.yaml Content And Symlink Can Lead To Code Execution","id":"CVE-2025-53547","kev_date_added":null,"published":"2025-07-08"},{"cvss_score":8.5,"headline":"lookup Function Information Discolosure in Helm","id":"CVE-2020-11013","kev_date_added":null,"published":"2020-04-24"},{"cvss_score":8.4,"headline":"Helm has a path traversal in plugin metadata version enables arbitrary file write outside Helm plugin directory","id":"CVE-2026-35204","kev_date_added":null,"published":"2026-04-09"},{"cvss_score":8.4,"headline":"Helm's plugin verification fails open when .prov is missing, allowing unsigned plugin install","id":"CVE-2026-35205","kev_date_added":null,"published":"2026-04-09"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["helm"]},"summary":"Attackers can cause Helm to crash by including empty files in charts, disrupting template rendering and deployment operations.","url":"https://insights.sbomify.com/CVE-2026-63308/"}