OESA-2026-4772

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4772

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-4772.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-4772

Upstream

CVE (3)

Published

2026-11-11T12:26:01Z

Modified

2026-11-11T12:45:04Z

Severity

9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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):

tarfile.tar_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() with filter="tar" to write files outside the destination directory, subject to the permissions of the extracting process.

This is the tarfile.tar_filter counterpart of CVE-2026-7774, which covered tarfile.data_filter.(CVE-2026-114583)

Python has added a denylist for known compromised certificates to the "ssl" module to ensure user safety even without certificate revocation configured. Known compromised certificates will automatically be rejected regardless of the SSLContext policy configuration.(CVE-2026-115557)

socket.getaddrinfo() previously accepted null bytes within host and port parameters which can cause the values to be silently truncated.(CVE-2026-116566)

Database specific

{
    "severity": "Critical"
}

References

Affected packages

openEuler:22.03-LTS-SP4 / python3

Package

Name: python3
Purl: pkg:rpm/openEuler/python3&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

3.9.9-63.oe2203sp4

Ecosystem specific

{
    "aarch64": [
        "python3-3.9.9-63.oe2203sp4.aarch64.rpm",
        "python3-debug-3.9.9-63.oe2203sp4.aarch64.rpm",
        "python3-debuginfo-3.9.9-63.oe2203sp4.aarch64.rpm",
        "python3-debugsource-3.9.9-63.oe2203sp4.aarch64.rpm",
        "python3-devel-3.9.9-63.oe2203sp4.aarch64.rpm",
        "python3-unversioned-command-3.9.9-63.oe2203sp4.aarch64.rpm"
    ],
    "noarch": [
        "python3-help-3.9.9-63.oe2203sp4.noarch.rpm"
    ],
    "src": [
        "python3-3.9.9-63.oe2203sp4.src.rpm"
    ],
    "x86_64": [
        "python3-3.9.9-63.oe2203sp4.x86_64.rpm",
        "python3-debug-3.9.9-63.oe2203sp4.x86_64.rpm",
        "python3-debuginfo-3.9.9-63.oe2203sp4.x86_64.rpm",
        "python3-debugsource-3.9.9-63.oe2203sp4.x86_64.rpm",
        "python3-devel-3.9.9-63.oe2203sp4.x86_64.rpm",
        "python3-unversioned-command-3.9.9-63.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-4772.json"