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SUSE go1.26 Moderate Update Security Flaws Resolved 2026-22154-1

suse
Calendar Grey June 23, 2026
Dist Suse Esm H88
An update for SUSE addresses three vulnerabilities in go1.26, enhancing system security and performance.
An update that solves three vulnerabilities and has three fixes can now be installed.

Summary

## This update for go1.26 fixes the following issues Update to go1.26.4 (bsc#1255111): * CVE-2026-27145: crypto/x509: split candidate hostname only once (bsc#1267450). * CVE-2026-42504: mime: quadratic complexity in WordDecoder.DecodeHeader (bsc#1267442). * CVE-2026-42507: net/textproto: arbitrary input are included in errors without any escaping (bsc#1267444). Changes: * go#79230 go#79217 boo#1267442 security: fix CVE-2026-42504 mime: quadratic complexity in WordDecoder.DecodeHeader * go#79426 go#79346 boo#1267444 security: fix CVE-2026-42507 net/textproto: arbitrary input are included in errors without any escaping * go#79701 go#79694 boo#1267450 security: fix CVE-2026-27145 crypto/x509: split candidate hostname only once

Topics%20covered

Topics Covered

security advisory moderate security issue SuSE arbitrary input go1.26

References

* bsc#1245878

* bsc#1255111

* bsc#1264395

* bsc#1267442

* bsc#1267444

* bsc#1267450

Cross-

* CVE-2026-27145

* CVE-2026-42504

* CVE-2026-42507

CVSS scores:

* CVE-2026-27145 ( SUSE ): 4.6

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

* CVE-2026-27145 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

* CVE-2026-27145 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

* CVE-2026-42504 ( SUSE ): 6.9

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

* CVE-2026-42504 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

* CVE-2026-42504 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-42507 ( SUSE ): 6.9

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

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22154-1
Release Date: 2026-06-17T08:37:36Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate security issue SuSE arbitrary input go1.26

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