ALSA-2026:19176: Security update for 14 packages

ALSA-2026:19176, released May 19, 2026, fixes 8 CVEs across 14 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

9.1

Base score, 0 to 10

Highest EPSS

0.0072

54th percentile

Priority of the 8 CVEs

Patch now 0
                                Urgent 0
                                High 8
                                Routine 0

Fixed package versions

Product	Release	Fixed in
python3.14	almalinux 9	3.14.4-2.el9_8
python3.14-debug	almalinux 9	3.14.4-2.el9_8
python3.14-devel	almalinux 9	3.14.4-2.el9_8
python3.14-freethreading	almalinux 9	3.14.4-2.el9_8
python3.14-freethreading-debug	almalinux 9	3.14.4-2.el9_8
python3.14-freethreading-devel	almalinux 9	3.14.4-2.el9_8
python3.14-freethreading-idle	almalinux 9	3.14.4-2.el9_8
python3.14-freethreading-libs	almalinux 9	3.14.4-2.el9_8
python3.14-freethreading-test	almalinux 9	3.14.4-2.el9_8
python3.14-freethreading-tkinter	almalinux 9	3.14.4-2.el9_8
python3.14-idle	almalinux 9	3.14.4-2.el9_8
python3.14-libs	almalinux 9	3.14.4-2.el9_8
python3.14-test	almalinux 9	3.14.4-2.el9_8
python3.14-tkinter	almalinux 9	3.14.4-2.el9_8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-4224	Stack overflow parsing XML with deeply nested DTD content models	8.1	0.0072	None reported
High	CVE-2026-6100	Use-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressure	9.1	0.0058	None reported
High	CVE-2026-0865	wsgiref.headers.Headers allows header newline injection	8.1	0.0055	None reported
High	CVE-2026-1502	HTTP client proxy tunnel headers not validated for CR/LF	8.1	0.0054	None reported
High	CVE-2026-3644	Incomplete control character validation in http.cookies	8.1	0.0051	None reported
High	CVE-2026-4519	webbrowser.open() allows leading dashes in URLs	8.1	0.0032	None reported
High	CVE-2026-2297	SourcelessFileLoader does not use io.open_code()	8.1	0.0022	None reported
High	CVE-2026-5713	Out-of-bounds read/write during remote profiling and asyncio process introspection when connecting to malicious target	8.1	0.0013	None reported

Also fixes CVE-2026-4224

SUSE-SU-2026:4534-1
python312, python312-core on sles 15.6
idle-python3.11 3.11.0~rc1-1~22.04.1+esm2
idle-python3.11 on Ubuntu 22.04.1 LTS (jammy)
libpython3.11 3.11.0~rc1-1~22.04.1+esm2
libpython3.11 on Ubuntu 22.04.1 LTS (jammy)
libpython3.11-minimal 3.11.0~rc1-1~22.04.1+esm2
libpython3.11-minimal on Ubuntu 22.04.1 LTS (jammy)
libpython3.11-stdlib 3.11.0~rc1-1~22.04.1+esm2
libpython3.11-stdlib on Ubuntu 22.04.1 LTS (jammy)
libpython3.11-testsuite 3.11.0~rc1-1~22.04.1+esm2
libpython3.11-testsuite on Ubuntu 22.04.1 LTS (jammy)
python3.11 3.11.0~rc1-1~22.04.1+esm2
python3.11 on Ubuntu 22.04.1 LTS (jammy)
python3.11-examples 3.11.0~rc1-1~22.04.1+esm2
python3.11-examples on Ubuntu 22.04.1 LTS (jammy)

Vendor advisory

https://osv.dev/vulnerability/ALSA-2026:19176

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