OPENSUSE-SU-2026:20342-1: go1.26 security update

OPENSUSE-SU-2026:20342-1, released March 11, 2026, fixes 5 CVEs in go1.26 (version 1.26.1-160000.1.1). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.1

Base score, 0 to 10

Highest EPSS

0.0083

57th percentile

Priority of the 5 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 2

Fixed package versions

Product	Release	Fixed in
go1.26	opensuse-leap 16.0	1.26.1-160000.1.1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-25679	Incorrect parsing of IPv6 host literals in net/url	9.1	0.0083	None reported
High	CVE-2026-27137	Incorrect enforcement of email constraints in crypto/x509	9.1	0.0066	None reported
High	CVE-2026-27142	URLs in meta content attribute actions are not escaped in html/template	7.5	0.0037	None reported
Routine	CVE-2026-27138	Panic in name constraint checking for malformed certificates in crypto/x509	5.9	0.0038	None reported
Routine	CVE-2026-27139	FileInfo can escape from a Root in os	2.5	0.0022	None reported

Also fixes CVE-2026-25679

OPENSUSE-SU-2026:21483-1
govulncheck-vulndb on opensuse-leap 16.0
SUSE-SU-2026:1042-1
govulncheck-vulndb on opensuse-leap 15.6
RHSA-2026:41019
flightctl on RHEL 10
OPENSUSE-SU-2026:21319-1
go1.25-openssl on opensuse-leap 16.0
SUSE-SU-2026:22638-1
go1.25-openssl on sles 16.0
RLSA-2026:22714
osbuild-composer on rocky 9
RLSA-2026:22450
osbuild-composer on rocky 10
RLSA-2026:22937
image-builder on rocky 10

Vendor advisory

https://osv.dev/vulnerability/openSUSE-SU-2026:20342-1

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