RHSA-2026:1558

HIGH7.5

Red Hat Security Advisory: python3 security update

Published Jan 30, 2026

Modified Yesterday

Fix available

Affected Packages

platform-python

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

platform-python-debug

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

platform-python-devel

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

python3

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

python3-debuginfo

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

python3-debugsource

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

python3-idle

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

python3-libs

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

python3-test

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

python3-tkinter

Red Hat rhel_aus 8.4 appstreamRed Hat rhel_aus 8.4 baseosRed Hat rhel_eus_long_life 8.4 appstreamRed Hat rhel_eus_long_life 8.4 baseos

Fixed in:

0:3.6.8-39.el8_4.8

References

ADVISORYhttps://access.redhat.com/errata/RHSA-2026:1558 REPORThttps://access.redhat.com/security/cve/CVE-2025-12084 ARTICLEhttps://access.redhat.com/security/updates/classification/#moderate REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=2418655 ARTICLEhttps://github.com/python/cpython/issues/142145 ARTICLEhttps://github.com/python/cpython/pull/142146 ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-12084 ADVISORYhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1558.json ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2025-12084

CVSS Analysis

CVSS v3.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Upstream

CVE-2025-12084

Ecosystems

Red Hat rhel_aus 8.4 appstream Red Hat rhel_aus 8.4 baseos Red Hat rhel_eus_long_life 8.4 appstream Red Hat rhel_eus_long_life 8.4 baseos

Timeline

PublishedJan 30, 2026

ModifiedFeb 5, 2026