An update for python3 is now available for openEuler-24.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-2919 Final 1.0 1.0 2026-07-09 Initial 2026-07-09 2026-07-09 openEuler SA Tool V1.0 2026-07-09 python3 security update An update for python3 is now available for openEuler-24.03-LTS-SP1 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): tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself.  The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower path, letting a relative target the filter judged contained escape the destination directory.  This allowed a malicious tar archive to create a symlink pointing outside the destination, enabling out-of-destination file reads or writes. This was an incomplete fix of CVE-2025-4330.(CVE-2026-11940) When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.(CVE-2026-11972) The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189.(CVE-2026-8328) An update for python3 is now available for master/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS-Next/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-SP3/openEuler-24.03-LTS-SP4/openEuler-22.03-LTS-SP3/openEuler-24.03-LTS/openEuler-24.03-LTS-SP2. 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-2026-2919 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-11940 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-11972 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-8328 https://nvd.nist.gov/vuln/detail/CVE-2026-11940 https://nvd.nist.gov/vuln/detail/CVE-2026-11972 https://nvd.nist.gov/vuln/detail/CVE-2026-8328 openEuler-24.03-LTS-SP1 python3-3.11.6-34.oe2403sp1.x86_64.rpm python3-debug-3.11.6-34.oe2403sp1.x86_64.rpm python3-debuginfo-3.11.6-34.oe2403sp1.x86_64.rpm python3-debugsource-3.11.6-34.oe2403sp1.x86_64.rpm python3-devel-3.11.6-34.oe2403sp1.x86_64.rpm python3-tkinter-3.11.6-34.oe2403sp1.x86_64.rpm python3-unversioned-command-3.11.6-34.oe2403sp1.x86_64.rpm python3-help-3.11.6-34.oe2403sp1.noarch.rpm python3-3.11.6-34.oe2403sp1.aarch64.rpm python3-debug-3.11.6-34.oe2403sp1.aarch64.rpm python3-debuginfo-3.11.6-34.oe2403sp1.aarch64.rpm python3-debugsource-3.11.6-34.oe2403sp1.aarch64.rpm python3-devel-3.11.6-34.oe2403sp1.aarch64.rpm python3-tkinter-3.11.6-34.oe2403sp1.aarch64.rpm python3-unversioned-command-3.11.6-34.oe2403sp1.aarch64.rpm python3-3.11.6-34.oe2403sp1.src.rpm tarfile.extractall() with the 'data' or 'tar' filter could be bypassed by a crafted archive where a hardlink references a symlink stored at a deeper name than the hardlink itself.  The extraction fallback validated the symlink at it's archived location but recreated it at the hardlink's shallower path, letting a relative target the filter judged contained escape the destination directory.  This allowed a malicious tar archive to create a symlink pointing outside the destination, enabling out-of-destination file reads or writes. This was an incomplete fix of CVE-2025-4330. 2026-07-09 CVE-2026-11940 openEuler-24.03-LTS-SP1 High 7.8 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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 2026-07-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2919 When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer. 2026-07-09 CVE-2026-11972 openEuler-24.03-LTS-SP1 High 8.2 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/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 2026-07-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2919 The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189. 2026-07-09 CVE-2026-8328 openEuler-24.03-LTS-SP1 Medium 5.9 AV:N/AC:L/AT:P/PR:N/UI:A/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 2026-07-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2919