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SUSE mcphost Important Fixes for Multiple Issues 2026-22193-1

suse
Calendar Grey June 23, 2026
Dist Suse Esm H88
Security update for mcphost addresses 20 critical vulnerabilities, ensuring system protection against attacks.
An update that solves 20 vulnerabilities can now be installed.

Summary

## This update for mcphost fixes the following issues * CVE-2026-25680,CVE-2026-25681,CVE-2026-27136,CVE-2026-42502,CVE-2026-42506: golang.org/x/net/html: multiple issues when parsing HTML files (bsc#1267109). * CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE (bsc#1265730). * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation (bsc#1266572). * CVE-2026-39827: Invoking memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh (bsc#1266145). * CVE-2026-39828: Invoking bypass of certificate restrictions in golang.org/x/crypto/ssh (bsc#1266145).

Topics%20covered

Topics Covered

security advisory SuSE privilege escalation DoS important mcphost

References

* bsc#1265730

* bsc#1266145

* bsc#1266572

* bsc#1267109

Cross-

* CVE-2026-25680

* CVE-2026-25681

* CVE-2026-27136

* CVE-2026-33814

* CVE-2026-39821

* CVE-2026-39827

* CVE-2026-39828

* CVE-2026-39829

* CVE-2026-39830

* CVE-2026-39831

* CVE-2026-39832

* CVE-2026-39833

* CVE-2026-39834

* CVE-2026-39835

* CVE-2026-42502

* CVE-2026-42506

* CVE-2026-42508

* CVE-2026-46595

* CVE-2026-46597

* CVE-2026-46598

CVSS scores:

* CVE-2026-25680 ( 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-2026-25680 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-25680 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

* CVE-2026-25681 ( SUSE ): 5.3

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22193-1
Release Date: 2026-06-20T06:52:26Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE privilege escalation DoS important mcphost

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