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SUSE alert openSUSE-SU-2026:21254-1 (go1.26-openssl)



From:
              null@suse.de


To:
              security-announce@lists.opensuse.org


Subject:
              openSUSE-SU-2026:21254-1: important: Security update for go1.26-openssl


Date:
              Wed, 08 Jul 2026 15:13:30 +0200


Message-ID:
              <20260708131330.8B070FCC9@maintenance.suse.de>


Archive-link:
              Article


openSUSE security update: security update for go1.26-openssl
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21254-1
Rating: important
References:

  * bsc#1170826
  * bsc#1245878
  * bsc#1255111
  * bsc#1261653
  * bsc#1261654
  * bsc#1261655
  * bsc#1261656
  * bsc#1261657
  * bsc#1261658
  * bsc#1261659
  * bsc#1261660
  * bsc#1261661
  * bsc#1261662
  * bsc#1264395
  * bsc#1264499
  * bsc#1264500
  * bsc#1264501
  * bsc#1264502
  * bsc#1264503
  * bsc#1264504
  * bsc#1264505
  * bsc#1264506
  * bsc#1264507
  * bsc#1264508
  * bsc#1264509
  * bsc#1267442
  * bsc#1267444
  * bsc#1267450



Cross-References:

  * CVE-2026-27140
  * CVE-2026-27143
  * CVE-2026-27144
  * CVE-2026-27145
  * CVE-2026-32280
  * CVE-2026-32281
  * CVE-2026-32282
  * CVE-2026-32283
  * CVE-2026-32288
  * CVE-2026-32289
  * CVE-2026-33810
  * CVE-2026-33811
  * CVE-2026-33814
  * CVE-2026-39817
  * CVE-2026-39819
  * CVE-2026-39820
  * CVE-2026-39823
  * CVE-2026-39825
  * CVE-2026-39826
  * CVE-2026-39836
  * CVE-2026-42499
  * CVE-2026-42501
  * CVE-2026-42504
  * CVE-2026-42507



CVSS scores:

  * CVE-2026-27140 ( SUSE ): 7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-27143 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-27144 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A: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 ( 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-2026-32280 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32281 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32282 ( SUSE ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-32283 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32288 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-32289 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
  * CVE-2026-33810 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-33811 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39817 ( SUSE ): 5.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
  * CVE-2026-39819 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
  * CVE-2026-39820 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39823 ( SUSE ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-39825 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-39826 ( SUSE ): 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2026-39836 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42499 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42501 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * 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 ( 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-2026-42507 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * 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

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 24 vulnerabilities and has 28 bug fixes can now be installed.

Description:

This update for go1.26-openssl fixes the following issues:

Update to go1.26.4  (bsc#1255111).

Security issues fixed:

- CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG (bsc#1261653).
- CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination
(bsc#1261654).
- CVE-2026-27144: cmd/compile: no-op interface conversion bypasses overlap checking (bsc#1261655).
- CVE-2026-27145: crypto/x509: split candidate hostname only once (bsc#1267450).
- CVE-2026-32280: crypto/x509: unexpected work during chain building (bsc#1261656).
- CVE-2026-32281: crypto/x509: inefficient policy validation (bsc#1261657).
- CVE-2026-32282: os: `Root.Chmod` can follow symlinks out of the root on Linux (bsc#1261658).
- CVE-2026-32283: crypto/tls: multiple key update handshake messages can cause connection to
deadlock (bsc#1261659).
- CVE-2026-32288: archive/tar: unbounded allocation when parsing old format GNU sparse map
(bsc#1261660).
- CVE-2026-32289: html/template: JS template literal context incorrectly tracked (bsc#1261661).
- CVE-2026-33810: crypto/x509: excluded DNS constraints not properly applied to wildcard domains
(bsc#1261662).
- CVE-2026-33811: net: crash when handling long `CNAME` response (bsc#1264508).
- CVE-2026-33814: net/http: infinite loop in HTTP/2 transport when given bad
`SETTINGS_MAX_FRAME_SIZE` (bsc#1264506).
- CVE-2026-39817: cmd/go: `go tool pack` does not sanitize output paths (bsc#1264505).
- CVE-2026-39819: cmd/go: `go bug` follows symlinks in predictable temporary filenames
(bsc#1264504).
- CVE-2026-39820: net/mail: quadratic string concatentation in `consumeComment` (bsc#1264503).
- CVE-2026-39823: html/template: bypass of meta content URL escaping causes XSS (bsc#1264509).
- CVE-2026-39825: net/http/httputil: `ReverseProxy` forwards queries with more than
`urlmaxqueryparams` parameters
  (bsc#1264500).
- CVE-2026-39826: html/template: escaper bypass leads to XSS (bsc#1264507).
- CVE-2026-39836: net: panic in `Dial` and `LookupPort` when handling `NUL` byte on Windows
(bsc#1264501).
- CVE-2026-42499: net/mail: quadratic string concatenation in `consumePhrase` (bsc#1264502).
- CVE-2026-42501: cmd/go: malicious module proxy can bypass checksum database (bsc#1264499).
- CVE-2026-42504: mime: quadratic complexity in `WordDecoder.DecodeHeader` (bsc#1267442).
- CVE-2026-42507: net/textproto: arbitrary input is included in errors without any escaping
(bsc#1267444).

Other updates and security fixes:

- Go packages miss `binutils-gold` dependency (bsc#1170826).
- Drop subpackage `go1.x-libstd` `std` library `.so` refs (jsc#PED-1962).
- Use `libalternatives` only on `suse_version >= 1610` and keep `update-alternatives` support for
older
  distributions.
- Drop the `update-alternatives` migration path for `libalternatives` builds.
- Enable `libalternatives` for SLE16.1 and Tumbleweed (bsc#1245878).
- Drop go1.26 dependency on `update-alternatives` (bsc#1264395)
- Update to version 1.26.3 cut from the `go1.25-fips-release` branch at the revision tagged
`go1.26.3-1-openssl-fips`
  (jsc#SLE-18320).


Patch instructions:

   To install this openSUSE security update use the suse recommended installation methods
   like YaST online_update or "zypper patch".
   Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-1175=1

Package List:

- openSUSE Leap 16.0:

  go1.26-openssl-1.26.4-160000.1.1
  go1.26-openssl-doc-1.26.4-160000.1.1
  go1.26-openssl-race-1.26.4-160000.1.1

References:

  * https://www.suse.com/security/cve/CVE-2026-27140.html
  * https://www.suse.com/security/cve/CVE-2026-27143.html
  * https://www.suse.com/security/cve/CVE-2026-27144.html
  * https://www.suse.com/security/cve/CVE-2026-27145.html
  * https://www.suse.com/security/cve/CVE-2026-32280.html
  * https://www.suse.com/security/cve/CVE-2026-32281.html
  * https://www.suse.com/security/cve/CVE-2026-32282.html
  * https://www.suse.com/security/cve/CVE-2026-32283.html
  * https://www.suse.com/security/cve/CVE-2026-32288.html
  * https://www.suse.com/security/cve/CVE-2026-32289.html
  * https://www.suse.com/security/cve/CVE-2026-33810.html
  * https://www.suse.com/security/cve/CVE-2026-33811.html
  * https://www.suse.com/security/cve/CVE-2026-33814.html
  * https://www.suse.com/security/cve/CVE-2026-39817.html
  * https://www.suse.com/security/cve/CVE-2026-39819.html
  * https://www.suse.com/security/cve/CVE-2026-39820.html
  * https://www.suse.com/security/cve/CVE-2026-39823.html
  * https://www.suse.com/security/cve/CVE-2026-39825.html
  * https://www.suse.com/security/cve/CVE-2026-39826.html
  * https://www.suse.com/security/cve/CVE-2026-39836.html
  * https://www.suse.com/security/cve/CVE-2026-42499.html
  * https://www.suse.com/security/cve/CVE-2026-42501.html
  * https://www.suse.com/security/cve/CVE-2026-42504.html
  * https://www.suse.com/security/cve/CVE-2026-42507.html
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