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SUSE 2026-2327

SUSE 2026-2327

Linuxsecurity •LinuxSecurity Advisories • June 10, 2026

## 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

## 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

* 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

Announcement ID: SUSE-SU-2026:2327-1 Release Date: 2026-06-09T19:06:53Z Rating: moderate

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