OESA-2026-3254

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3254
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3254.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3254
Upstream
Published
2026-08-07T02:42:13Z
Modified
2026-08-07T03:00:52.840625857Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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 CVSS Calculator
Summary
python3 security update
Details

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):

Element.findall() and fully-consumed Element.iterfind() exhibit O(n^2) time complexity when using XPath index predicates (e.g. [1], [last()], [last()-N]) on XML documents with many same-tag siblings. Element.find() is only affected when the first match is near the end  of the sibling list, such as with [last()] or [last()-N];  .//item[1] short-circuits after the first match.(CVE-2026-6879)

xml.parsers.expat and xml.etree.ElementTree use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding. Fully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch.(CVE-2026-7210)

Database specific 
{
    "severity": "Medium"
}
References

Affected packages

openEuler:24.03-LTS-SP3 / python3

Package

Name
python3
Purl
pkg:rpm/openEuler/python3&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.11.6-40.oe2403sp3

Ecosystem specific 

{
    "noarch": [
        "python3-help-3.11.6-40.oe2403sp3.noarch.rpm"
    ],
    "src": [
        "python3-3.11.6-40.oe2403sp3.src.rpm"
    ],
    "x86_64": [
        "python3-3.11.6-40.oe2403sp3.x86_64.rpm",
        "python3-debug-3.11.6-40.oe2403sp3.x86_64.rpm",
        "python3-debuginfo-3.11.6-40.oe2403sp3.x86_64.rpm",
        "python3-debugsource-3.11.6-40.oe2403sp3.x86_64.rpm",
        "python3-devel-3.11.6-40.oe2403sp3.x86_64.rpm",
        "python3-tkinter-3.11.6-40.oe2403sp3.x86_64.rpm",
        "python3-unversioned-command-3.11.6-40.oe2403sp3.x86_64.rpm"
    ],
    "aarch64": [
        "python3-3.11.6-40.oe2403sp3.aarch64.rpm",
        "python3-debug-3.11.6-40.oe2403sp3.aarch64.rpm",
        "python3-debuginfo-3.11.6-40.oe2403sp3.aarch64.rpm",
        "python3-debugsource-3.11.6-40.oe2403sp3.aarch64.rpm",
        "python3-devel-3.11.6-40.oe2403sp3.aarch64.rpm",
        "python3-tkinter-3.11.6-40.oe2403sp3.aarch64.rpm",
        "python3-unversioned-command-3.11.6-40.oe2403sp3.aarch64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3254.json"