Back Linuxsecurity Fedora 43 Python 3.13 Critical Security Updates 2026
[ 1 ] Bug #2457943 - CVE-2026-1502 python3.13: Python: HTTP header injection via CR/LF in proxy tunnel headers [fedora-all] [ 2 ] Bug #2458015 - CVE-2026-6100 python3.13: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules [fedora-all] [ 3 ] Bug #2458223 - CVE-2026-4786 python3.13: Python: Arbitrary code execution via command injection in webbrowser.open() API [fedora-all] [ 4 ] Bug #2484194 - CVE-2026-7210 python3.13: Python/Expat: Denial of Service via crafted XML document [fedora-all] [ 5 ] Bug #2484559 - CVE-2026-3276 python3.13: Python unicodedata: Denial of Service due to excessive CPU consumption [fedora-all]
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-2deb979d80' at the command line. For more information, refer to the dnf documentation available at
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