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python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules

🗓️ 05 May 2026 11:18:07Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 7 Views

Use-after-free in Python decompression modules can allow code execution if reusing decompressor after MemoryError.

Related
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Refs
ReporterTitlePublishedViews
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ATTACKERKB		CVE-2026-6100
13 Apr 202617:15
–attackerkb
Tenable Nessus		Amazon Linux 2023 : python3.14, python3.14-devel, python3.14-freethreading (ALAS2023-2026-1617)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3, python3-devel, python3-idle (ALAS2023-2026-1618)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.12, python3.12-devel, python3.12-idle (ALAS2023-2026-1619)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.11, python3.11-devel, python3.11-idle (ALAS2023-2026-1620)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.13, python3.13-devel, python3.13-freethreading (ALAS2023-2026-1638)
20 May 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : python, --advisory ALAS2-2026-3280 (ALAS-2026-3280)
14 May 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : python3, --advisory ALAS2-2026-3281 (ALAS-2026-3281)
14 May 202600:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0112: python3.11 (ALINUX3-SA-2026:0112)
18 May 202600:00
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Tenable Nessus		Alibaba Cloud Linux 3 : 0113: python3 (ALINUX3-SA-2026:0113)
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.2aarch64python3.113.11.2-2.el9_2.12python3.11-3.11.2-2.el9_2.12.aarch64.rpm
Red Hat Enterprise Linux9.2ppc64lepython3.113.11.2-2.el9_2.12python3.11-3.11.2-2.el9_2.12.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xpython3.113.11.2-2.el9_2.12python3.11-3.11.2-2.el9_2.12.s390x.rpm
Red Hat Enterprise Linux9.2x86_64python3.113.11.2-2.el9_2.12python3.11-3.11.2-2.el9_2.12.x86_64.rpm
Red Hat Enterprise Linux9.2aarch64python3.11-debuginfo3.11.2-2.el9_2.12python3.11-debuginfo-3.11.2-2.el9_2.12.aarch64.rpm
Red Hat Enterprise Linux9.2i686python3.11-debuginfo3.11.2-2.el9_2.12python3.11-debuginfo-3.11.2-2.el9_2.12.i686.rpm
Red Hat Enterprise Linux9.2ppc64lepython3.11-debuginfo3.11.2-2.el9_2.12python3.11-debuginfo-3.11.2-2.el9_2.12.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xpython3.11-debuginfo3.11.2-2.el9_2.12python3.11-debuginfo-3.11.2-2.el9_2.12.s390x.rpm
Red Hat Enterprise Linux9.2x86_64python3.11-debuginfo3.11.2-2.el9_2.12python3.11-debuginfo-3.11.2-2.el9_2.12.x86_64.rpm
Red Hat Enterprise Linux9.2aarch64python3.11-debugsource3.11.2-2.el9_2.12python3.11-debugsource-3.11.2-2.el9_2.12.aarch64.rpm
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06 Jul 2026 05:48Current
7.7High risk
Vulners AI Score7.7
CVSS 3.18.1
CVSS 49.1
EPSS0.00579
SSVC
CWE-825
pythonuse after freedecompressor reusememory errorarbitrary code executiondata disclosure
7