CVE-2026-63308
mediumpriority · track · 26EPSS 0.005 · 41 %ileDEEUNLRUUSEPSS · scored 2026-10-23
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–6.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
- Oracle Communications Cloud Native Core Security Edge Protection Proxy 25.2.201all versionscert_bundDEcpe:/a:oracle:communications:cloud_native_core_security_edge_protection_proxy_25.2.201
- Oracle Communications Cloud Native Core Security Edge Protection Proxy 26.1.200all versionscert_bundDEcpe:/a:oracle:communications:cloud_native_core_security_edge_protection_proxy_26.1.200
- Oracle Communications MetaSolv Solution Module 70.0.0all versionscert_bundDEcpe:/a:oracle:communications:metasolv_solution_module_70.0.0
- Oracle Communications Operations Monitor 6.1all versionscert_bundDEcpe:/a:oracle:communications:operations_monitor_6.1
- Oracle Communications Service Catalog and Design 8.0-8.3all versionscert_bundDEcpe:/a:oracle:communications:service_catalog_and_design_8.0_-_8.3
- Oracle Communications Unified Assurance 6.1.1-7.0.0all versionscert_bundDEcpe:/a:oracle:communications:unified_assurance_6.1.1_-_7.0.0
- Oracle Communications Unified Assurance 7.0.0all versionscert_bundDEcpe:/a:oracle:communications:unified_assurance_7.0.0
advisories (4)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0375Kwetsbaarheden verholpen in Oracle CommunicationsNL2026-09-16csaf · ncsc_nlNL
Oracle heeft 31 kwetsbaarheden verholpen in diverse Oracle Communications-producten, waaronder Oracle Communications Unified Assurance, Oracle Communications Cloud Native Core Security Edge Protection Proxy, Oracle Communications MetaSolv Solution Module - ASR, Oracle Communications Service Catalog and Design en Oracle Communications Operations Monitor.
- WID-SEC-W-2026-2412helm: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-07-19csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in helm ausnutzen, um einen Denial of Service Angriff durchzuführen.
- WID-SEC-W-2026-3403Oracle Communications: Mehrere SchwachstellenDeutsch2026-09-15csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- BIT-helm-2026-63308Helm Files.Lines Denial of Service via Empty Chart Files2026-07-31vendor · osvUS
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.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://github.com/helm/helm/commit/ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017cnnvd
- https://github.com/helm/helm/issues/32279cnnvd
- https://github.com/helm/helm/pull/32290cnnvd
- https://www.vulncheck.com/advisories/chat2db-insecure-direct-object-reference-via-get-api-connection-datasourcecnnvd
- https://github.com/helm/helm/commit/ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017enisa_euvd
- https://github.com/helm/helm/issues/32279enisa_euvd
- https://github.com/helm/helm/pull/32290enisa_euvd
- https://www.vulncheck.com/advisories/chat2db-insecure-direct-object-reference-via-get-api-connection-datasourceenisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan