openSUSE 16: helm / helm-bash-completion / helm-fish-completion / etc (openSUSE-SU-2026:21809-1)

high Nessus Plugin ID 344664

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21809-1 advisory.

Update to version 3.21.1:

- CVE-2026-37236: github.com/grpc-ecosystem/grpc-gateway/v2/runtime: client can override the HTTP method of a POST request through the X-HTTP-Method-Override header and bypass established access control (bsc#1277949).
- CVE-2026-41178: go.opentelemetry.io/otel/baggage: no rejection of raw-length headers in baggage parsing allows for DoS via oversized inputs (bsc#1276644).
- CVE-2026-48978: oras.land/oras-go/v2/registry/remote/auth: Malicious registry can hijack Bearer token realm to exfiltrate credentials and refresh tokens (bsc#1270127).
- CVE-2026-50151: oras-go: Credential forwarding via unvalidated Location header during blob upload (bsc#1271660).
- CVE-2026-63308: processing zero-length byte slices in template chart files can trigger an index out-of- range panic (bsc#1272402).
- CVE-2026-84303: github.com/grpc/grpc-go: xDS RBAC HTTP filter implementation issue allows for bypass of authorization policies via mixed-case or canonical-case header matches (bsc#1278270).
- CVE-2026-84304: github.com/grpc/grpc-go: heap memory exhaustion via HTTP/2 DATA frame fragmentation (bsc#1278273).
- CVE-2026-84445: google.golang.org/grpc: DoS via crash due to missing `:authority` and `Host` headers in gRPC-Go xDS servers (bsc#1278688).
- gRPC-Go: several issues affecting the xDS RBAC authorization engine and the HTTP/2 transport server implementation (bsc#1276514).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected helm, helm-bash-completion, helm-fish-completion and / or helm-zsh-completion packages.

Plugin Details

Severity: High

ID: 344664

File Name: openSUSE-2026-21809-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 9/11/2026

Updated: 9/11/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.62

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-63308

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-84304

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:helm-bash-completion, p-cpe:/a:novell:opensuse:helm-fish-completion, p-cpe:/a:novell:opensuse:helm-zsh-completion, p-cpe:/a:novell:opensuse:helm

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 5/28/2026

Reference Information

CVE: CVE-2026-37236, CVE-2026-41178, CVE-2026-48978, CVE-2026-50151, CVE-2026-63308, CVE-2026-84303, CVE-2026-84304, CVE-2026-84445

Detections

Analytics