SUSE-SU-2026:23496-1: moderate: Security update for mcphost

[SLE-SECURITY-UPDATES]

# Security update for mcphost

Announcement ID: SUSE-SU-2026:23496-1  
Release Date: 2026-09-06T16:47:56Z  
Rating: moderate  
References:

  * bsc#1276612
  * bsc#1278013

  
Cross-References:

  * CVE-2026-41178
  * CVE-2026-81092

  
CVSS scores:

  * 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-2026-81092 ( SUSE ):  7.6
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-81092 ( SUSE ):  6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
  * CVE-2026-81092 ( NVD ):  7.6
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/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-2026-81092 ( NVD ):  6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

  
Affected Products:

  * SUSE Linux Micro 6.2

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for mcphost fixes the following issues:

  * CVE-2026-41178: go.opentelemetry.io/otel/baggage: no rejection of raw-length
    headers in baggage parsing allows for DoS via oversized inputs
    (bsc#1276612).
  * CVE-2026-81092: github.com/mark3labs/mcp-go/server: requests accepted in
    HTTP transports without Host header checks can lead to tool usage and
    resource exposure in target server (bsc#1278013).

Changes for mcphost:

  * Update github.com/mark3labs/mcp-go/server to v0.56.0.
  * Update go.opentelemetry.io/otel to 1.44.0.

## 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 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-1619=1

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * mcphost-0.34.0-160000.4.1
    * mcphost-debuginfo-0.34.0-160000.4.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-41178.html
  * https://www.suse.com/security/cve/CVE-2026-81092.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1276612
  * https://bugzilla.suse.com/show_bug.cgi?id=1278013

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