Security update for nodejs20

Announcement ID:	SUSE-SU-2026:1363-1
Release Date:	2026-04-15T14:16:21Z
Rating:	important
References:	bsc#1256576 bsc#1260455 bsc#1260462 bsc#1260463 bsc#1260480 bsc#1260482 bsc#1260494
Cross-References:	CVE-2026-21637 CVE-2026-21710 CVE-2026-21713 CVE-2026-21714 CVE-2026-21715 CVE-2026-21716 CVE-2026-21717
CVSS scores:	CVE-2026-21637 ( 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-2026-21637 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2026-21637 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-21637 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-21710 ( 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-2026-21710 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-21710 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-21713 ( SUSE ): 6.3 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVE-2026-21713 ( SUSE ): 5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2026-21713 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2026-21714 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-21714 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-21714 ( NVD ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2026-21715 ( SUSE ): 4.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-21715 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2026-21715 ( NVD ): 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2026-21716 ( SUSE ): 2.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVE-2026-21716 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVE-2026-21716 ( NVD ): 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVE-2026-21717 ( SUSE ): 7.2 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-21717 ( SUSE ): 6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVE-2026-21717 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	openSUSE Leap 15.6 SUSE Linux Enterprise Server 15 SP6 SUSE Linux Enterprise Server 15 SP6 LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP6

An update that solves seven vulnerabilities can now be installed.

Description:

This update for nodejs20 fixes the following issues:

Update to version 20.20.2.

• CVE-2026-21717: trivially predictable hash collisions due to flaw in V8's string hashing mechanism allows for performance degradation via a crafted request (bsc#1260494).
• CVE-2026-21716: incomplete fix for CVE-2024-36137 allows promise-based FileHandle methods to be used to modify file permissions and ownership on already-open file descriptors (bsc#1260462).
• CVE-2026-21715: flaw in the Permission Model filesystem enforcement allows for file existence disclosure and filesystem path enumeration via fs.realpathSync.native() (bsc#1260482).
• CVE-2026-21714: memory leak in Node.js HTTP/2 server allows for resource exhaustion via WINDOW_UPDATE frames sent on stream 0 (bsc#1260480).
• CVE-2026-21713: timing side-channel due to flaw in Node.js HMAC verification allows for discovery of HMAC values and potential MAC forgery (bsc#1260463).
• CVE-2026-21710: uncaught TypeError when handling HTTP requests allows for a process crash via requests with a header named __proto__ when the application accesses req.headersDistinct (bsc#1260455).
• CVE-2026-21637: flaw in TLS error handling allows for resource exhaustion and crash when pskCallback or ALPNCallback are in use (bsc#1256576).

Patch Instructions:

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

• SUSE Linux Enterprise Server for SAP Applications 15 SP6
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1363=1
• openSUSE Leap 15.6
  zypper in -t patch SUSE-2026-1363=1
• SUSE Linux Enterprise Server 15 SP6 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1363=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
  • nodejs20-20.20.2-150600.3.18.1
  • nodejs20-debugsource-20.20.2-150600.3.18.1
  • npm20-20.20.2-150600.3.18.1
  • nodejs20-debuginfo-20.20.2-150600.3.18.1
  • nodejs20-devel-20.20.2-150600.3.18.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
  • nodejs20-docs-20.20.2-150600.3.18.1
• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
  • nodejs20-20.20.2-150600.3.18.1
  • nodejs20-debugsource-20.20.2-150600.3.18.1
  • npm20-20.20.2-150600.3.18.1
  • nodejs20-debuginfo-20.20.2-150600.3.18.1
  • nodejs20-devel-20.20.2-150600.3.18.1
  • corepack20-20.20.2-150600.3.18.1
• openSUSE Leap 15.6 (noarch)
  • nodejs20-docs-20.20.2-150600.3.18.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
  • nodejs20-20.20.2-150600.3.18.1
  • nodejs20-debugsource-20.20.2-150600.3.18.1
  • npm20-20.20.2-150600.3.18.1
  • nodejs20-debuginfo-20.20.2-150600.3.18.1
  • nodejs20-devel-20.20.2-150600.3.18.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
  • nodejs20-docs-20.20.2-150600.3.18.1

References:

• https://www.suse.com/security/cve/CVE-2026-21637.html
• https://www.suse.com/security/cve/CVE-2026-21710.html
• https://www.suse.com/security/cve/CVE-2026-21713.html
• https://www.suse.com/security/cve/CVE-2026-21714.html
• https://www.suse.com/security/cve/CVE-2026-21715.html
• https://www.suse.com/security/cve/CVE-2026-21716.html
• https://www.suse.com/security/cve/CVE-2026-21717.html
• https://bugzilla.suse.com/show_bug.cgi?id=1256576
• https://bugzilla.suse.com/show_bug.cgi?id=1260455
• https://bugzilla.suse.com/show_bug.cgi?id=1260462
• https://bugzilla.suse.com/show_bug.cgi?id=1260463
• https://bugzilla.suse.com/show_bug.cgi?id=1260480
• https://bugzilla.suse.com/show_bug.cgi?id=1260482
• https://bugzilla.suse.com/show_bug.cgi?id=1260494