ESB-2026.4423 — Vulnetix

ESB-2026.4423 PUBLISHED CVSS 5.900000095367432 MEDIUM

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4423 Security update for protobuf 30 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: protobuf Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2025-4565 CVE-2026-0994 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-20261653-1 Comment: CVSS (Max): 5.9 CVE-2026-0994 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H EPSS (Max): 0.0% (3rd) CVE-2025-4565 2026-04-29 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for protobuf Announcement ID: SUSE-SU-2026:1653-1 Release Date: 2026-04-29T00:46:40Z Rating: moderate o bsc#1244663 References: o bsc#1257173 o bsc#1260019 o CVE-2025-4565 Cross-References: o CVE-2026-0994 o CVE-2025-4565 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/ UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2025-4565 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2025-4565 ( NVD ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/ UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/ MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/ MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X o CVE-2025-4565 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:L CVSS scores: o CVE-2026-0994 ( SUSE ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/ UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N o CVE-2026-0994 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/ S:U/C:N/I:N/A:H o CVE-2026-0994 ( NVD ): 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/ UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/ MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/ MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X o CVE-2026-0994 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:H o Basesystem Module 15-SP7 o Public Cloud Module 15-SP4 o Public Cloud Module 15-SP5 o Public Cloud Module 15-SP6 o Public Cloud Module 15-SP7 o SUSE Linux Enterprise Desktop 15 SP7 o SUSE Linux Enterprise High Performance Computing 15 SP4 o SUSE Linux Enterprise High Performance Computing 15 SP5 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 o SUSE Linux Enterprise Micro 5.2 o SUSE Linux Enterprise Micro 5.3 Affected o SUSE Linux Enterprise Micro 5.4 Products: o SUSE Linux Enterprise Micro 5.5 o SUSE Linux Enterprise Micro for Rancher 5.2 o SUSE Linux Enterprise Micro for Rancher 5.3 o SUSE Linux Enterprise Micro for Rancher 5.4 o SUSE Linux Enterprise Real Time 15 SP7 o SUSE Linux Enterprise Server 15 SP4 o SUSE Linux Enterprise Server 15 SP4 LTSS o SUSE Linux Enterprise Server 15 SP5 o SUSE Linux Enterprise Server 15 SP5 LTSS o SUSE Linux Enterprise Server 15 SP6 o SUSE Linux Enterprise Server 15 SP6 LTSS o SUSE Linux Enterprise Server 15 SP7 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 o SUSE Linux Enterprise Server for SAP Applications 15 SP6 o SUSE Linux Enterprise Server for SAP Applications 15 SP7 o SUSE Manager Proxy 4.3 o SUSE Manager Retail Branch Server 4.3 o SUSE Manager Server 4.3 o SUSE Package Hub 15 15-SP7 An update that solves two vulnerabilities and has one security fix can now be installed. Description: This update for protobuf fixes the following issues: Refresh fixes: o CVE-2025-4565: parsing of untrusted Protocol Buffers data containing an arbitrary number of recursive groups or messages can lead to crash due to RecursionError (bsc#1244663). o CVE-2026-0994: max_recursion_depth limit can be bypassed when parsing nested google.protobuf.Any messages and lead to the exhaustion of the Python recursion stack (bsc#1257173). 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: o SUSE Linux Enterprise Micro for Rancher 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-1653=1 o SUSE Linux Enterprise Micro 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-1653=1 o SUSE Linux Enterprise Micro for Rancher 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1653=1 o SUSE Linux Enterprise Micro 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-1653=1 o SUSE Linux Enterprise Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2026-1653=1 o Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1653=1 o SUSE Package Hub 15 15-SP7 zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-1653= 1 o Public Cloud Module 15-SP4 zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP4-2026-1653=1 o Public Cloud Module 15-SP5 zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP5-2026-1653=1 o Public Cloud Module 15-SP6 zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP6-2026-1653=1 o Public Cloud Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP7-2026-1653=1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1653=1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1653=1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1653=1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1653=1 o SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1653=1 o SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1653=1 o SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1653=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1653=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1653=1 o SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1653=1 o SUSE Linux Enterprise Micro 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1653=1 o SUSE Linux Enterprise Micro for Rancher 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1653=1 Package List: o SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 o Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64) libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64) python3-protobuf-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o Public Cloud Module 15-SP4 (aarch64 ppc64le s390x x86_64) python3-protobuf-3.9.2-150200.4.33.1 o Public Cloud Module 15-SP5 (aarch64 ppc64le s390x x86_64) python3-protobuf-3.9.2-150200.4.33.1 o Public Cloud Module 15-SP6 (aarch64 ppc64le s390x x86_64) python3-protobuf-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o Public Cloud Module 15-SP7 (aarch64 ppc64le s390x x86_64) python3-protobuf-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64) libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-debuginfo-3.9.2-150200.4.33.1 libprotoc20-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64) libprotobuf20-debuginfo-3.9.2-150200.4.33.1 libprotobuf20-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 o SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64) libprotobuf-lite20-3.9.2-150200.4.33.1 libprotobuf-lite20-debuginfo-3.9.2-150200.4.33.1 protobuf-debugsource-3.9.2-150200.4.33.1 References: o https://www.suse.com/security/cve/CVE-2025-4565.html o https://www.suse.com/security/cve/CVE-2026-0994.html o https://bugzilla.suse.com/show_bug.cgi?id=1244663 o https://bugzilla.suse.com/show_bug.cgi?id=1257173 o https://bugzilla.suse.com/show_bug.cgi?id=1260019 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration 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Risk Scores

CVSS v3.1

5.900000095367432

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
SUSE	protobuf

Timeline

Apr 30, 2026 CVE Published

References

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