Upstream information
Description
Use-after-free (UAF) was possible in the `lzma.LZMADecompressor`, `bz2.BZ2Decompressor`, and `gzip.GzipFile` when a memory allocation fails with a `MemoryError` and the decompression instance is re-used. This scenario can be triggered if the process is under memory pressure. The fix cleans up the dangling pointer in this specific error condition.The vulnerability is only present if the program re-uses decompressor instances across multiple decompression calls even after a `MemoryError` is raised during decompression. Using the helper functions to one-shot decompress data such as `lzma.decompress()`, `bz2.decompress()`, `gzip.decompress()`, and `zlib.decompress()` are not affected as a new decompressor instance is used per call. If the decompressor instance is not re-used after an error condition, this usage is similarly not vulnerable.
Other Security Trackers
SUSE information
Overall state of this security issue: Does not affect SUSE products
SUSE Bugzilla entry: 1262098 [NEW]SUSE Security Advisories:
- RHSA-2026:10711, published Tue Apr 28 15:07:57 UTC 2026
- RHSA-2026:10745, published Tue Apr 28 15:07:59 UTC 2026
- RHSA-2026:10774, published Tue Apr 28 15:07:59 UTC 2026
- RHSA-2026:10949, published Tue Apr 28 15:07:59 UTC 2026
- RHSA-2026:10950, published Tue Apr 28 15:07:58 UTC 2026
- RHSA-2026:11062, published Tue Apr 28 15:07:58 UTC 2026
- RHSA-2026:11077, published Tue Apr 28 15:07:58 UTC 2026
- SUSE-SU-2026:1715-1, published 2026-05-06T12:10:39Z
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| Container suse/manager/4.3/proxy-httpd:4.3.17.9.76.17 Container suse/manager/4.3/proxy-salt-broker:4.3.17.9.66.19 Container suse/manager/4.3/proxy-ssh:4.3.17.9.66.13 Container suse/manager/4.3/proxy-tftpd:4.3.17.9.66.15 Image SLES15-SP4-CHOST-BYOS Image SLES15-SP4-CHOST-BYOS-Aliyun Image SLES15-SP4-CHOST-BYOS-Azure Image SLES15-SP4-CHOST-BYOS-GCE Image SLES15-SP4-CHOST-BYOS-SAP-CCloud |
| |
| Image SLES15-SP4-BYOS Image SLES15-SP4-BYOS-Azure Image SLES15-SP4-BYOS-EC2 Image SLES15-SP4-BYOS-GCE Image SLES15-SP4-HPC-BYOS Image SLES15-SP4-HPC-BYOS-Azure Image SLES15-SP4-HPC-BYOS-EC2 Image SLES15-SP4-HPC-BYOS-GCE Image SLES15-SP4-HPC-EC2 Image SLES15-SP4-HPC-GCE Image SLES15-SP4-Hardened-BYOS Image SLES15-SP4-Hardened-BYOS-Azure Image SLES15-SP4-Hardened-BYOS-EC2 Image SLES15-SP4-Hardened-BYOS-GCE Image SLES15-SP4-SAP Image SLES15-SP4-SAP-Azure Image SLES15-SP4-SAP-BYOS Image SLES15-SP4-SAP-BYOS-Azure Image SLES15-SP4-SAP-BYOS-EC2 Image SLES15-SP4-SAP-BYOS-GCE Image SLES15-SP4-SAP-EC2 Image SLES15-SP4-SAP-GCE Image SLES15-SP4-SAP-Hardened Image SLES15-SP4-SAP-Hardened-Azure Image SLES15-SP4-SAP-Hardened-BYOS Image SLES15-SP4-SAP-Hardened-BYOS-Azure Image SLES15-SP4-SAP-Hardened-BYOS-EC2 Image SLES15-SP4-SAP-Hardened-BYOS-GCE Image SLES15-SP4-SAP-Hardened-GCE Image SLES15-SP4-SAPCAL Image SLES15-SP4-SAPCAL-Azure Image SLES15-SP4-SAPCAL-EC2 Image SLES15-SP4-SAPCAL-GCE Image SLES15-SP5-HPC-BYOS-Azure Image SLES15-SP5-HPC-BYOS-EC2 Image SLES15-SP5-HPC-BYOS-GCE Image SLES15-SP5-SAP-Azure-3P Image SLES15-SP5-SAP-Hardened-BYOS-EC2 Image SLES15-SP6-HPC-BYOS Image SLES15-SP6-HPC-BYOS-EC2 Image SLES15-SP6-HPC-BYOS-GCE Image SLES15-SP6-HPC-EC2 Image SLES15-SP6-HPC-GCE Image SLES15-SP7-HPC-Azure Image SLES15-SP7-HPC-BYOS-Azure Image SLES15-SP7-HPC-BYOS-EC2 Image SLES15-SP7-HPC-BYOS-GCE |
| |
| SUSE Liberty Linux 10 |
| Patchnames: RHSA-2026:10711 |
| SUSE Liberty Linux 8 |
| Patchnames: RHSA-2026:10950 RHSA-2026:11062 RHSA-2026:11077 |
| SUSE Liberty Linux 9 |
| Patchnames: RHSA-2026:10745 RHSA-2026:10774 RHSA-2026:10949 |
| SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-SP7-2026-1715 SUSE-SLE-Module-Development-Tools-15-SP7-2026-1715 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-1715 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-1715 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-1715 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-1715 |
| SUSE Linux Enterprise Micro 5.2 |
| Patchnames: SUSE-SUSE-MicroOS-5.2-2026-1715 |
| SUSE Linux Enterprise Micro 5.3 |
| Patchnames: SUSE-SLE-Micro-5.3-2026-1715 |
| SUSE Linux Enterprise Micro 5.4 |
| Patchnames: SUSE-SLE-Micro-5.4-2026-1715 |
| SUSE Linux Enterprise Micro 5.5 |
| Patchnames: SUSE-SLE-Micro-5.5-2026-1715 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-SP7-2026-1715 |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 |
| Patchnames: SUSE-SLE-Module-Development-Tools-15-SP7-2026-1715 |
| SUSE Linux Enterprise Server 15 SP4-LTSS |
| Patchnames: SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-1715 |
| SUSE Linux Enterprise Server 15 SP5-LTSS |
| Patchnames: SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-1715 |
| SUSE Linux Enterprise Server 15 SP6-LTSS |
| Patchnames: SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1715 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 |
| Patchnames: SUSE-SLE-Product-SLES_SAP-15-SP4-2026-1715 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
| Patchnames: SUSE-SLE-Product-SLES_SAP-15-SP5-2026-1715 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 |
| Patchnames: SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1715 |
| SUSE Manager Proxy LTS 4.3 |
| Patchnames: SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-LTS-2026-1715 |
| SUSE Manager Retail Branch Server LTS 4.3 |
| Patchnames: SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.3-LTS-2026-1715 |
| SUSE Manager Server LTS 4.3 |
| Patchnames: SUSE-SLE-Product-SUSE-Manager-Server-4.3-LTS-2026-1715 |
| openSUSE Leap 15.6 |
| Patchnames: openSUSE-SLE-15.6-2026-1715 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2026-10647 openSUSE-Tumbleweed-2026-10648 openSUSE-Tumbleweed-2026-10667 |
List of packages in QA
| Product(s) | Package(s) |
|---|---|
| SUSE Linux Enterprise Server 12 SP5-LTSS |
|
| SUSE Linux Enterprise Server 12 SP5-LTSS |
|
| SUSE Linux Enterprise Server 15 SP5-LTSS |
|
| SUSE Linux Enterprise Server 15 SP5-LTSS |
|
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 |
|
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
|
First public cloud image revisions this CVE is fixed in:
- amazon/suse-sle-hpc-15-sp5-byos-v20260506-hvm-ssd-x86_64
- amazon/suse-sles-15-sp4-byos-v20260506-hvm-ssd-arm64
- amazon/suse-sles-15-sp4-byos-v20260506-hvm-ssd-x86_64
- amazon/suse-sles-15-sp4-hardened-byos-v20260507-hvm-ssd-x86_64
- amazon/suse-sles-15-sp4-sapcal-v20260507-hvm-ssd-x86_64
- amazon/suse-sles-15-sp5-v20260506-ecs-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp4-byos-v20260506-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp4-hardened-byos-v20260507-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp5-hardened-byos-v20260507-hvm-ssd-x86_64
- google/sle-hpc-15-sp4-byos-v20260508-x86-64
- google/sle-hpc-15-sp5-byos-v20260506-x86-64
- google/sles-15-sp4-byos-v20260506-arm64
- google/sles-15-sp4-byos-v20260506-x86-64
- google/sles-15-sp4-hardened-byos-v20260507-x86-64
- google/sles-15-sp4-sapcal-v20260507-x86-64
- google/sles-sap-15-sp4-byos-v20260506-x86-64
- google/sles-sap-15-sp4-hardened-byos-v20260507-x86-64
- google/sles-sap-15-sp4-hardened-v20260507-x86-64
- google/sles-sap-15-sp4-v20260506-x86-64
- microsoft/suse-sle-hpc-15-sp5-byos-v20260506-x86_64
- microsoft/suse-sles-15-sp4-byos-v20260506-arm64
- microsoft/suse-sles-15-sp4-byos-v20260506-x86_64
- microsoft/suse-sles-15-sp4-hardened-byos-v20260507-x86_64
- microsoft/suse-sles-15-sp4-sapcal-v20260507-x86_64
- microsoft/suse-sles-sap-15-sp4-byos-v20260506-x86_64
- microsoft/suse-sles-sap-15-sp4-hardened-byos-v20260507-x86_64
- microsoft/suse-sles-sap-15-sp4-hardened-v20260507-x86_64
- microsoft/suse-sles-sap-15-sp4-v20260506-x86_64
- microsoft/suse-sles-sap-15-sp5-v20260506-x86_64
- microsoft/suse-sles-sap-15-sp5-v20260507-x86_64-llc
- microsoft/suse-sles-sap-15-sp5-v20260507-x86_64-ltd
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | python3 | Released |
| SUSE Linux Enterprise Desktop 15 SP7 | python3-core | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | python3 | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | python3-core | Released |
| SUSE Linux Enterprise Micro 5.3 | python3 | Released |
| SUSE Linux Enterprise Micro 5.3 | python3-core | Released |
| SUSE Linux Enterprise Micro 5.4 | python3 | Released |
| SUSE Linux Enterprise Micro 5.4 | python3-core | Released |
| SUSE Linux Enterprise Micro 5.5 | python3 | Released |
| SUSE Linux Enterprise Micro 5.5 | python3-core | Released |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | python3 | Released |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | python3-core | Released |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | python3-core | Released |
| SUSE Linux Enterprise Server 15 SP7 | python3 | Released |
| SUSE Linux Enterprise Server 15 SP7 | python3-core | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python3 | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | python3-core | Released |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python3 | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python3-core | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python3 | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python3-core | Released |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python3 | In progress |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python3-base | In progress |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python3 | Released |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python3-core | Released |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python3 | Released |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python3-core | Released |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python39 | In progress |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python39-core | In progress |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python3 | Released |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python3-core | Released |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python3 | In progress |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python3-base | In progress |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python3 | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python3-core | Released |
| SUSE Manager Proxy LTS 4.3 | python3 | Released |
| SUSE Manager Proxy LTS 4.3 | python3-core | Released |
| SUSE Manager Retail Branch Server LTS 4.3 | python3 | Released |
| SUSE Manager Retail Branch Server LTS 4.3 | python3-core | Released |
| SUSE Manager Server LTS 4.3 | python3 | Released |
| SUSE Manager Server LTS 4.3 | python3-core | Released |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python3 | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python3-core | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python3 | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python3-core | Released |
| SUSE Linux Enterprise Micro 5.2 | python3 | Released |
| SUSE Linux Enterprise Micro 5.2 | python3-core | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python3 | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python3-core | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python3 | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python3-core | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python39 | In progress |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python39-core | In progress |
SUSE Timeline for this CVE
CVE page created: Mon Apr 13 22:35:10 2026CVE page last modified: Fri May 8 13:47:45 2026