An update for python3 is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-1817 Final 1.0 1.0 2026-04-03 Initial 2026-04-03 2026-04-03 openEuler SA Tool V1.0 2026-04-03 python3 security update An update for python3 is now available for openEuler-24.03-LTS-SP3 Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces. Security Fix(es): The import hook in CPython that handles legacy *.pyc files (SourcelessFileLoader) is incorrectly handled in FileLoader (a base class) and so does not use io.open_code() to read the .pyc files. sys.audit handlers for this audit event therefore do not fire.(CVE-2026-2297) The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open().(CVE-2026-4519) An update for python3 is now available for master/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS/openEuler-24.03-LTS-Next/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-SP2/openEuler-24.03-LTS-SP3/openEuler-22.03-LTS-SP3. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High python3 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1817 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-2297 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-4519 https://nvd.nist.gov/vuln/detail/CVE-2026-2297 https://nvd.nist.gov/vuln/detail/CVE-2026-4519 openEuler-24.03-LTS-SP3 python3-3.11.6-26.oe2403sp3.src.rpm python3-3.11.6-26.oe2403sp3.x86_64.rpm python3-debug-3.11.6-26.oe2403sp3.x86_64.rpm python3-debuginfo-3.11.6-26.oe2403sp3.x86_64.rpm python3-debugsource-3.11.6-26.oe2403sp3.x86_64.rpm python3-devel-3.11.6-26.oe2403sp3.x86_64.rpm python3-tkinter-3.11.6-26.oe2403sp3.x86_64.rpm python3-unversioned-command-3.11.6-26.oe2403sp3.x86_64.rpm python3-help-3.11.6-26.oe2403sp3.noarch.rpm python3-3.11.6-26.oe2403sp3.aarch64.rpm python3-debug-3.11.6-26.oe2403sp3.aarch64.rpm python3-debuginfo-3.11.6-26.oe2403sp3.aarch64.rpm python3-debugsource-3.11.6-26.oe2403sp3.aarch64.rpm python3-devel-3.11.6-26.oe2403sp3.aarch64.rpm python3-tkinter-3.11.6-26.oe2403sp3.aarch64.rpm python3-unversioned-command-3.11.6-26.oe2403sp3.aarch64.rpm The import hook in CPython that handles legacy *.pyc files (SourcelessFileLoader) is incorrectly handled in FileLoader (a base class) and so does not use io.open_code() to read the .pyc files. sys.audit handlers for this audit event therefore do not fire. 2026-04-03 CVE-2026-2297 openEuler-24.03-LTS-SP3 Medium 5.7 AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X python3 security update 2026-04-03 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1817 The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open(). 2026-04-03 CVE-2026-4519 openEuler-24.03-LTS-SP3 High 7.0 AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X python3 security update 2026-04-03 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1817