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python3.9 vulnerabilities

Vulnerability published for python3.9 in the last 30 days: 1. Listed in the KEV catalogue: 0.

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Vulnerabilities: 20

  1. RLSA-2026:89742

    High · CVSS 8.1Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: python: Arbitrary file deletion via race condition during temporary directory cleanup (CVE-2026-12345) * python: python: Certificate verification bypass via missing server_hostname validation in SSLContext.wrap_bio() (CVE-2026-19553) * python: Use-after-free of a server-side SSLContext when sni_callback switches contexts (CVE-2026-1944

    • Update to 0:3.9.25-7.el9_8.6
    Published Updated
  2. RLSA-2026:54268

    High · CVSS 7.3Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: cpython: CPython: tarfile extraction filter bypass allows escaping the destination directory (CVE-2026-11940) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.25-7.el9_8.3
    Published Updated
  3. RLSA-2026:39798

    High · CVSS 7.5Fix available

    Important: python3.9 security, bug fix, and enhancement update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations (CVE-2026-15308) Bug Fix(es) and Enhancement(s): * python3.9 test_ssl fails ssl.SSLError: [ASN1: NOT_ENOUGH_DATA] not enough data (_ssl.c:4192) [rhel-9.8.z] (JIRA:Rocky Linux-194207) For more details about the security issue(s), including the i

    • Update to 0:3.9.25-7.el9_8.2
    Published Updated
  4. RLSA-2026:19216

    High · CVSS 8.1Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: Python: Command-line option injection in webbrowser.open() via crafted URLs (CVE-2026-4519) * python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100) * python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786)

    • Update to 0:3.9.25-7.el9_8
    Published Updated
  5. RLSA-2026:10949

    High · CVSS 8.1Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100) * python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and

    • Update to 0:3.9.25-3.el9_7.3
    Published Updated
  6. RLSA-2026:6766

    High · CVSS 7.1Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: Python: Command-line option injection in webbrowser.open() via crafted URLs (CVE-2026-4519) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.25-3.el9_7.2
    Published Updated
  7. RLSA-2026:4168

    High · CVSS 7.1Fix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * cpython: IMAP command injection in user-controlled commands (CVE-2025-15366) * cpython: POP3 command injection in user-controlled commands (CVE-2025-15367) * cpython: email header injection due to unquoted newlines (CVE-2026-1299) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other rela

    • Update to 0:3.9.25-3.el9_7.1
    Published Updated
  8. RLSA-2026:1478

    High · CVSS 7.5Fix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * cpython: python: cpython: Quadratic algorithm in xml.dom.minidom leads to denial of service (CVE-2025-12084) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.25-3.el9_7
    Published Updated
  9. RLSA-2025:23342

    Medium · CVSS 4.3Fix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: Invalid value for OpenSSL API may cause Buffer over-read when NPN is used (CVE-2024-5642) * cpython: Python HTMLParser quadratic complexity (CVE-2025-6069) * cpython: python: Python zipfile End of Central Directory (EOCD) Locator record offset not checked (CVE-2025-8291) * python: Quadratic complexity in os.path.expandvars() with user

    • Update to 0:3.9.25-2.el9_7
    Published Updated
  10. RLSA-2025:15019

    High · CVSS 7.5Fix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * cpython: Cpython infinite loop when parsing a tarfile (CVE-2025-8194) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.21-2.el9_6.2
    Published Updated
  11. RLSA-2025:6977

    Medium · CVSS 6.8Fix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: cpython: URL parser allowed square brackets in domain names (CVE-2025-0938) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release

    • Update to 0:3.9.21-2.el9
    Published Updated
  12. RLSA-2025:10136

    High · CVSS 7.6Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * cpython: Tarfile extracts filtered members when errorlevel=0 (CVE-2025-4435) * cpython: Bypass extraction filter to modify file metadata outside extraction directory (CVE-2024-12718) * cpython: Extraction filter bypass for linking outside extraction directory (CVE-2025-4330) * python: cpython: Arbitrary writes via tarfile realpath overflow (C

    • Update to 0:3.9.21-2.el9_6.1
    Published Updated
  13. RLSA-2024:10983

    Not ratedFix available

    Moderate: python3.9:3.9.21 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: Virtual environment (venv) activation scripts don't quote paths (CVE-2024-9287) * python: Improper validation of IPv6 and IPvFuture addresses (CVE-2024-11168) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the Reference

    • Update to 0:3.9.21-1.el9_5
    Published Updated
  14. RLSA-2024:8446

    Not ratedFix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: cpython: tarfile: ReDos via excessive backtracking while parsing header values (CVE-2024-6232) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.18-3.el9_4.6
    Published Updated
  15. RLSA-2024:4078

    Not ratedFix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: Path traversal on tempfile.TemporaryDirectory (CVE-2023-6597) * python: The zipfile module is vulnerable to zip-bombs leading to denial of service (CVE-2024-0450) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer the CVE page(s) listed in the Referenc

    • Update to 0:3.9.18-3.el9_4.1
    Published Updated
  16. RLSA-2023:3595

    High · CVSS 7.5Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: urllib.parse url blocklisting bypass (CVE-2023-24329) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.16-1.el9_2.1
    Published Updated
  17. RLSA-2023:0953

    High · CVSS 7.5Fix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * Python: CPU denial of service via inefficient IDNA decoder (CVE-2022-45061) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.14-1.el9_1.2
    Published Updated
  18. RLSA-2022:8493

    High · CVSS 7.8Fix available

    Important: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: local privilege escalation via the multiprocessing forkserver start method (CVE-2022-42919) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.14-1.el9_1.1
    Published Updated
  19. RLSA-2022:8353

    High · CVSS 7.6Fix available

    Moderate: python3.9 security, bug fix, and enhancement update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. The following packages have been upgraded to a later upstream version: python3.9 (3.9.14). (BZ#2128249) Security Fix(es): * python: mailcap: findmatch() function does not sanitize the second argument (CVE-2015-20107) * python: open redirection vulnerability in lib/http/server.py may lead to information disclosure (CVE-2021-28861) For more details about the secur

    • Update to 0:3.9.14-1.el9_1.1
    Published Updated
  20. RLSA-2022:7323

    High · CVSS 7.5Fix available

    Moderate: python3.9 security update

    Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fix(es): * python: int() type in PyLong_FromString() does not limit amount of digits converting text to int leading to DoS (CVE-2020-10735) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

    • Update to 0:3.9.10-3.el9_0
    Published Updated

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