SUSE-SU-2026:23456-1: moderate: Security update for helm

Wed Sep 9 13:52:05 UTC 2026

# Security update for helm

Announcement ID: SUSE-SU-2026:23456-1  
Release Date: 2026-09-04T08:24:13Z  
Rating: moderate  
References:

  * bsc#1270127
  * bsc#1270416
  * bsc#1271660
  * bsc#1272402
  * bsc#1276290
  * bsc#1276291
  * bsc#1276510
  * bsc#1276514
  * bsc#1277949

Cross-References:

  * CVE-2026-33630
  * CVE-2026-37236
  * CVE-2026-41178
  * CVE-2026-48978
  * CVE-2026-50151
  * CVE-2026-63308
  * CVE-2026-69184
  * CVE-2026-69186

CVSS scores:

  * CVE-2026-33630 ( SUSE ):  8.7
    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
  * CVE-2026-33630 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33630 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-37236 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-37236 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-37236 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-41178 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-41178 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-48978 ( SUSE ):  2.1
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-48978 ( SUSE ):  3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
  * CVE-2026-48978 ( NVD ):  2.1
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-50151 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-50151 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-63308 ( SUSE ):  4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-63308 ( NVD ):  5.3
    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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-63308 ( NVD ):  4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-63308 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-69184 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-69186 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products:

  * SUSE Linux Micro 6.0
  * SUSE Linux Micro 6.2

An update that solves eight vulnerabilities and has one fix can now be
installed.

## Security update for helm

### Description:

This update for helm fixes the following issues:

  * 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,go.opentelemetry.io/otel/propagation: no
    rejection of raw-length headers in baggage parsing allows for DoS via
    oversized inputs (bsc#1276510).
  * 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).
  * gRPC-Go: several issues affecting the xDS RBAC authorization engine and the
    HTTP/2 transport server implementation (bsc#1276514).

## Security update for c-ares

### Description:

This update for c-ares fixes the following issues:

Updat to c-ares 1.36.8.

  * CVE-2026-33630: remotely triggerable use-after-free/double-free in query-
    completion handling via `ares_getaddrinfo()` over TCP (bsc#1270416).
  * CVE-2026-69184: CPU exhaustion denial of service via unbounded DNS name
    compression pointer chains (bsc#1276290).
  * CVE-2026-69186: memory amplification denial of service via unvalidated DNS
    header record counts (bsc#1276291).

Changes for c-ares:

  * For details, see https://c-ares.org/changelog.html.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Micro 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-881=1

  * SUSE Linux Micro 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-1579=1

## Package List:

  * SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
    * helm-debuginfo-3.21.3-2.1
    * helm-3.21.3-2.1
  * SUSE Linux Micro 6.0 (noarch)
    * helm-bash-completion-3.21.3-2.1
  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * libcares2-1.34.8-160000.1.1
    * c-ares-debugsource-1.34.8-160000.1.1
    * libcares2-debuginfo-1.34.8-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-33630.html
  * https://www.suse.com/security/cve/CVE-2026-37236.html
  * https://www.suse.com/security/cve/CVE-2026-41178.html
  * https://www.suse.com/security/cve/CVE-2026-48978.html
  * https://www.suse.com/security/cve/CVE-2026-50151.html
  * https://www.suse.com/security/cve/CVE-2026-63308.html
  * https://www.suse.com/security/cve/CVE-2026-69184.html
  * https://www.suse.com/security/cve/CVE-2026-69186.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1270127
  * https://bugzilla.suse.com/show_bug.cgi?id=1270416
  * https://bugzilla.suse.com/show_bug.cgi?id=1271660
  * https://bugzilla.suse.com/show_bug.cgi?id=1272402
  * https://bugzilla.suse.com/show_bug.cgi?id=1276290
  * https://bugzilla.suse.com/show_bug.cgi?id=1276291
  * https://bugzilla.suse.com/show_bug.cgi?id=1276510
  * https://bugzilla.suse.com/show_bug.cgi?id=1276514
  * https://bugzilla.suse.com/show_bug.cgi?id=1277949

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