- Issued:
- 2026-05-20
- Updated:
- 2026-05-20
RHSA-2026:19571 - Security Advisory
Synopsis
Important: python3.9 security update
Type/Severity
Security Advisory: Important
Red Hat Lightspeed patch analysis
Identify and remediate systems affected by this advisory.
Topic
An update for python3.9 is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.
Security Fix(es):
- python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100)
- python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
Affected Products
- Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0 ppc64le
- Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64
- Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.0 aarch64
- Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.0 s390x
Fixes
- BZ - 2457932 - CVE-2026-6100 python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules
- BZ - 2458049 - CVE-2026-4786 python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API
Note:
More recent versions of these packages may be available.
Click a package name for more details.
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0
| SRPM | |
|---|---|
| python3.9-3.9.10-4.el9_0.11.src.rpm | SHA-256: c4cf9fa7ef32db66e2f7908a7744f73ad7d4772abc0516739074ce57d21a4f94 |
| ppc64le | |
| python-unversioned-command-3.9.10-4.el9_0.11.noarch.rpm | SHA-256: f7f85762f8d9c659dd57a92e6399ef47368a486c9006b262c03255158a554b16 |
| python3-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: 4415e139009b062cbb5b66a5aca1627c0ba76b3070d7aac2fff17eaef7bb0adc |
| python3-devel-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: 4134cee404a0c1e06ea61efd059dd6ff6df4c15e6ac08b1f8e860e53bd397416 |
| python3-libs-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: 5f3ed5c69c68648fd24e1a71a12b6958a960d6c048835e2fb0b32ba86582f9cc |
| python3-tkinter-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: a1b5184a2e0efd4eb447cec96b48bf20c8abe6013e841c460629c3fb5442f571 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: 80ad40bd3634160f4b3c6142274592694c86ecd71b6266ae2010eab60d348524 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: 80ad40bd3634160f4b3c6142274592694c86ecd71b6266ae2010eab60d348524 |
| python3.9-debugsource-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: 7917ccc96fce84c610fd3752bc3a4e0b45c6ea232506d0adbf8b5f96cfedeaac |
| python3.9-debugsource-3.9.10-4.el9_0.11.ppc64le.rpm | SHA-256: 7917ccc96fce84c610fd3752bc3a4e0b45c6ea232506d0adbf8b5f96cfedeaac |
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0
| SRPM | |
|---|---|
| python3.9-3.9.10-4.el9_0.11.src.rpm | SHA-256: c4cf9fa7ef32db66e2f7908a7744f73ad7d4772abc0516739074ce57d21a4f94 |
| x86_64 | |
| python-unversioned-command-3.9.10-4.el9_0.11.noarch.rpm | SHA-256: f7f85762f8d9c659dd57a92e6399ef47368a486c9006b262c03255158a554b16 |
| python3-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: 7ec2e6b39e0cf52e793ad6e731de24bc0043975dfaf8706775d7604aef58ace4 |
| python3-devel-3.9.10-4.el9_0.11.i686.rpm | SHA-256: 9ba92e360e189ee47330e528d65b12345d9398564997e1acc09f4f232a2b4753 |
| python3-devel-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: c4fb90983a08062f0f6058ac060124bba37e4c1eefaec99655e1ad0bf685f4bd |
| python3-libs-3.9.10-4.el9_0.11.i686.rpm | SHA-256: 6d6b601c19f1289249c9ba3350a9b40318f41906e01a9dff55825304713f9fdc |
| python3-libs-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: 0b9b4fb03627db990e55582132887e7139e33c47df3c4b43897d0803b368e04a |
| python3-tkinter-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: 873e5bf133070b2c9aa344b580c72e82f53e42983b2856c99696f848dfbc6b28 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.i686.rpm | SHA-256: 45ede8811a8deb77d8cbe95ff9091b2d398bcc82e240029703899a578e22ee48 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.i686.rpm | SHA-256: 45ede8811a8deb77d8cbe95ff9091b2d398bcc82e240029703899a578e22ee48 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: 28db16844bc532916cad22f7ca8f804a7b0fe6fc74861fe676e23d1a542e7407 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: 28db16844bc532916cad22f7ca8f804a7b0fe6fc74861fe676e23d1a542e7407 |
| python3.9-debugsource-3.9.10-4.el9_0.11.i686.rpm | SHA-256: 379e7145f35c740598f2ef24a9c8bd13f450f3049fed1cd4e9fd6b34779305d4 |
| python3.9-debugsource-3.9.10-4.el9_0.11.i686.rpm | SHA-256: 379e7145f35c740598f2ef24a9c8bd13f450f3049fed1cd4e9fd6b34779305d4 |
| python3.9-debugsource-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: a93501727c87b00a474aee020c1d24fbb02bf3cb29fddea6bf005a014753446f |
| python3.9-debugsource-3.9.10-4.el9_0.11.x86_64.rpm | SHA-256: a93501727c87b00a474aee020c1d24fbb02bf3cb29fddea6bf005a014753446f |
Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.0
| SRPM | |
|---|---|
| python3.9-3.9.10-4.el9_0.11.src.rpm | SHA-256: c4cf9fa7ef32db66e2f7908a7744f73ad7d4772abc0516739074ce57d21a4f94 |
| aarch64 | |
| python-unversioned-command-3.9.10-4.el9_0.11.noarch.rpm | SHA-256: f7f85762f8d9c659dd57a92e6399ef47368a486c9006b262c03255158a554b16 |
| python3-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: 695949f9c789082d6ba4c440bc581eb86892eeae1285bca10cb3422c406bb5c1 |
| python3-devel-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: 57441b48de87c0246fbf530a320ce0dbb1a293dd69d210a590f4a105fee5f3c6 |
| python3-libs-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: 0502f598a09bc75677e7e653103fb1f9d91a9006be9966086090e955c0738979 |
| python3-tkinter-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: 95612b5786195142337abe090d06e42672c490544cce0aff20a75d39e9631bd1 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: dd1468cc9f5465463cdaa67cb02f0656f4f6e789a73e06b325b613f42eb39ecd |
| python3.9-debuginfo-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: dd1468cc9f5465463cdaa67cb02f0656f4f6e789a73e06b325b613f42eb39ecd |
| python3.9-debugsource-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: e8928be2d6c6de5b86a510d2a6be1531f57eb5cc4e68acfadf5a2e64c58602a9 |
| python3.9-debugsource-3.9.10-4.el9_0.11.aarch64.rpm | SHA-256: e8928be2d6c6de5b86a510d2a6be1531f57eb5cc4e68acfadf5a2e64c58602a9 |
Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.0
| SRPM | |
|---|---|
| python3.9-3.9.10-4.el9_0.11.src.rpm | SHA-256: c4cf9fa7ef32db66e2f7908a7744f73ad7d4772abc0516739074ce57d21a4f94 |
| s390x | |
| python-unversioned-command-3.9.10-4.el9_0.11.noarch.rpm | SHA-256: f7f85762f8d9c659dd57a92e6399ef47368a486c9006b262c03255158a554b16 |
| python3-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 525681c530b7af374edc62324e4cc61402b8a8aebe108ba3c50b06650ad719a2 |
| python3-devel-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 3617dfa9b5b5a6c0db28b0e3e872305da95b0b8871a39b7a62df2bbce56c114b |
| python3-libs-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 3765a3df28abff94e1092600bba48c79f1bd36354609afc4f14e44f28620c752 |
| python3-tkinter-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 6dd158baba3120e59a5c91354f26620241237302df2e500a80938b70ca1f20b8 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 946df0a1d63e2f3f049d46ec5f63093b5595cd9f25fcaccbee49c872b8489203 |
| python3.9-debuginfo-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 946df0a1d63e2f3f049d46ec5f63093b5595cd9f25fcaccbee49c872b8489203 |
| python3.9-debugsource-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 19542880b1e9b8aaa23671a269a3abc7fc1a13a35b9a87ebb4fc501a9f7c73dc |
| python3.9-debugsource-3.9.10-4.el9_0.11.s390x.rpm | SHA-256: 19542880b1e9b8aaa23671a269a3abc7fc1a13a35b9a87ebb4fc501a9f7c73dc |
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