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Alerts This Week
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openSUSE mcphost Important Security Update DoS Issues 2026-21120-1

opensuse
Calendar Grey June 30, 2026
Dist Opensuse Esm H88
A critical openSUSE update analyzing security risks with mcphost, addressing multiple vulnerabilities and critical issues.
An update that solves 20 vulnerabilities and has 4 bug fixes can now be installed.

Description

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).

- CVE-2026-39829: Invoking pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh (bsc#1266145).

- CVE-2026-39830: Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh

(bsc#1266145).

- CVE-2026-39831:...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory DoS important multiple issues OpenSUSE mcphost

Patch

Package List

- openSUSE Leap 16.0:

mcphost-0.34.0-160000.2.1

mcphost-bash-completion-0.34.0-160000.2.1

mcphost-fish-completion-0.34.0-160000.2.1

mcphost-zsh-completion-0.34.0-160000.2.1

References

* bsc#1265730

* bsc#1266145

* bsc#1266572

* bsc#1267109

References:

* https://www.suse.com/security/cve/CVE-2026-25680.html

* https://www.suse.com/security/cve/CVE-2026-25681.html

* https://www.suse.com/security/cve/CVE-2026-27136.html

* https://www.suse.com/security/cve/CVE-2026-33814.html

* https://www.suse.com/security/cve/CVE-2026-39821.html

* https://www.suse.com/security/cve/CVE-2026-39827.html

* https://www.suse.com/security/cve/CVE-2026-39828.html

* https://www.suse.com/security/cve/CVE-2026-39829.html

* https://www.suse.com/security/cve/CVE-2026-39830.html

* https://www.suse.com/security/cve/CVE-2026-39831.html

* https://www.suse.com/security/cve/CVE-2026-39832.html

* https://www.suse.com/security/cve/CVE-2026-39833.html

* https://www.suse.com/security/cve/CVE-2026-39834.html

* https://www.suse.com/security/cve/CVE-2026-39835.html

* https://www.suse.com/security/cve/CVE-2026-42502.html

* https://www.suse.com/security/cve/CVE-2026-42506.html

* https://www.suse.com/security/cve/CVE-2026-42508.html

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:21120-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory DoS important multiple issues OpenSUSE mcphost

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