SUSE alert openSUSE-SU-2026:20902-1 (keybase-client)

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null@suse.de
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openSUSE-SU-2026:20902-1: important: Security update for keybase-client
Date:
             
 
Fri, 05 Jun 2026 17:51:29 +0200
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<20260605155129.4D8A5FCEE@maintenance.suse.de>
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Article
openSUSE security update: security update for keybase-client
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:20902-1
Rating: important
References:

  * bsc#1253563
  * bsc#1253864
  * bsc#1254023
  * bsc#1258591
  * bsc#1260696
  * bsc#1266158
  * bsc#1266596



Cross-References:

  * CVE-2025-47913
  * CVE-2025-47914
  * CVE-2025-58181
  * CVE-2026-26958
  * CVE-2026-33809
  * CVE-2026-39821
  * CVE-2026-39827
  * CVE-2026-39828
  * CVE-2026-39829
  * CVE-2026-39830
  * CVE-2026-39831
  * CVE-2026-39832
  * CVE-2026-39833
  * CVE-2026-39834
  * CVE-2026-39835
  * CVE-2026-42508
  * CVE-2026-46595
  * CVE-2026-46597
  * CVE-2026-46598



CVSS scores:

  * CVE-2025-47913 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-47913 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-47914 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-47914 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-58181 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-58181 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-26958 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
  * CVE-2026-26958 ( SUSE ): 8.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-39821 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39821 ( SUSE ): 9.1 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39827 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39827 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39828 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39828 ( SUSE ): 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39829 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39829 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39830 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39830 ( SUSE ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39831 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39831 ( SUSE ): 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39832 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-39832 ( SUSE ): 6.2 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
  * CVE-2026-39833 ( SUSE ): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39833 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39834 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39834 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39835 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39835 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-42508 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-42508 ( SUSE ): 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-46595 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-46595 ( SUSE ): 8.6 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-46597 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-46597 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-46598 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-46598 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected Products:

         openSUSE Leap 16.0

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

An update that solves 19 vulnerabilities and has 7 bug fixes can now be installed.

Description:

This update for keybase-client fixes the following issues:

Changes in keybase-client:

- golang.org/x/crypto/ssh: Fixed multiple issues:
  CVE-2026-39827, CVE-2026-39834, CVE-2026-39828, CVE-2026-39829, CVE-2026-39831,
  CVE-2026-42508, CVE-2026-39833, CVE-2026-39830, CVE-2026-39832, CVE-2026-46597,
  CVE-2026-46598, CVE-2026-46595, CVE-2026-39835 (boo#1266158)
- CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels
  allows for validation bypass and privilege escalation (boo#1266596).

- Update to version 6.6.2
  * Improve git default branch handling

- CVE-2026-33809: golang.org/x/image/tiff: excessive resource consumption due to
  large allocation attempt when decoding maliciously crafted TIFF file (bsc#1260696)
- Switch to go1.25 as required by update go image library.

- Update to version 6.6.0
  * Various bug fixes and performance improvements

- CVE-2026-26958: filippo.io/edwards25519: failure to initialize receiver in MultiScalarMult
  can produce invalid results and lead to undefined behavior (bsc#1258591).
- CVE-2025-47914: golang.org/x/crypto/ssh/agent: non validated message size can cause a panic
  due to an out of bounds read (bsc#1254023).
- CVE-2025-58181: keybase-client: golang.org/x/crypto/ssh: invalidated number of mechanisms
  can cause unbounded memory consumption (bsc#1253864).
- CVE-2025-47913: keybase-client: golang.org/x/crypto/ssh/agent: client process termination
  when receiving an unexpected message type in response to a key listing or signing request
(bsc#1253563).

- Update to version 6.5.1
  * Fix team deletion not working
  * Chat attachments improvements
  * Miscellaneous bugfixes


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-packagehub-297=1

Package List:

- openSUSE Leap 16.0:

  kbfs-6.6.2-bp160.1.1
  kbfs-git-6.6.2-bp160.1.1
  kbfs-tool-6.6.2-bp160.1.1
  keybase-client-6.6.2-bp160.1.1

References:

  * https://www.suse.com/security/cve/CVE-2025-47913.html
  * https://www.suse.com/security/cve/CVE-2025-47914.html
  * https://www.suse.com/security/cve/CVE-2025-58181.html
  * https://www.suse.com/security/cve/CVE-2026-26958.html
  * https://www.suse.com/security/cve/CVE-2026-33809.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-2026-42508.html
  * https://www.suse.com/security/cve/CVE-2026-46595.html
  * https://www.suse.com/security/cve/CVE-2026-46597.html
  * https://www.suse.com/security/cve/CVE-2026-46598.html