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Important: Red Hat Security Advisory: python3 security update

🗓️ 21 Apr 2026 16:29:40Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Security update for Python on Red Hat Enterprise Linux 8.6 fixes CVE-2026-4519 command-line option injection in webbrowser.open.

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Refs
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IBM Security Bulletins		Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to multiple Operator package issues
21 May 202615:57
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IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container UBI updates
7 May 202613:38
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FreeBSD		Python -- The webbrowser.open() API allows leading dashes
20 Mar 202600:00
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FreeBSD		python -- more webbrowser.open() command injection vulnerabilities
6 Apr 202600:00
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ATTACKERKB		CVE-2026-4519
20 Mar 202615:08
–attackerkb
ATTACKERKB		CVE-2026-4786
13 Apr 202621:52
–attackerkb
Tenable Nessus		Amazon Linux 2023 : python3.13, python3.13-devel, python3.13-freethreading (ALAS2023-2026-1555)
13 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.14, python3.14-devel, python3.14-freethreading (ALAS2023-2026-1556)
13 Apr 202600:00
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Tenable Nessus		Amazon Linux 2023 : python3.12, python3.12-devel, python3.12-idle (ALAS2023-2026-1557)
13 Apr 202600:00
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Tenable Nessus		Amazon Linux 2023 : python3.11, python3.11-devel, python3.11-idle (ALAS2023-2026-1558)
13 Apr 202600:00
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27 May 2026 07:49Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.13.3
CVSS 47
EPSS0.00015
SSVC
PythonRed Hat Enterprise LinuxCommand line injectionWebbrowser openCVE 2026 4519
3