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    CVE-2024-0450

    An issue was found in the CPython `zipfile` module affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior. The zipfile module is vulnerable to “quoted-overlap” zip-bombs which exploit the zip format to create a zip-bomb with a high compression ratio. The fixed versions of CPython makes the zipfile module reject zip archives which overlap entries in the archive.

    Published:Mar 19, 2024
    Last Modified:Apr 15, 2026
    EPS:Mar 19, 2024
    EPSS Score:0.00148
    CVSS Score:6.2

    Affected Products

    Vendor
    Python
    Product
    Cpython
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Tus
    Vendor
    Redhat
    Product
    Service Interconnect

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-15310 (CVSS 2.1) — When decompressing crafted zip files using the bzip/LZMA/Zstandard compressions, Python could use an attacke…
    CVE-2026-19672 (CVSS 6.3) — The tarfile module's tar and data extraction filters created directories outside the destination for members…
    CVE-2026-15806 (CVSS 6) — The HTTPPasswordMgr class in the urllib.request module, along with its subclasses HTTPPasswordMgrWithDefaultRe…
    CVE-2026-17084 (CVSS 6) — The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unico…
    CVE-2026-18503 (CVSS 2.4) — Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and …
    CVE-2026-6879 (CVSS 2) — `Element.findall()` and fully-consumed `Element.iterfind()` exhibit `O(n^2)` time complexity when using XPath …
    CVE-2026-15308 (CVSS 8.7) — The incremental HTML parser (html.parser.HTMLParser) allows for CPU denial-of-service through repeated untermi…
    CVE-2026-4360 (CVSS 2) — In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks. An a…
    CVE-2026-11972 (CVSS 8.2) — When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not …
    CVE-2026-0864 (CVSS 4.1) — When using the "configparser" module to write configuration files containing multi-line text values with carri…

    References

    http://www.openwall.com/lists/oss-security/2024/03/20/5
    https://github.com/python/cpython/commit/30fe5d853b56138dbec62432d370a1f99409fc85
    https://github.com/python/cpython/commit/66363b9a7b9fe7c99eba3a185b74c5fdbf842eba
    https://github.com/python/cpython/commit/70497218351ba44bffc8b571201ecb5652d84675
    https://github.com/python/cpython/commit/a2c59992e9e8d35baba9695eb186ad6c6ff85c51
    https://github.com/python/cpython/commit/a956e510f6336d5ae111ba429a61c3ade30a7549
    https://github.com/python/cpython/commit/d05bac0b74153beb541b88b4fca33bf053990183
    https://github.com/python/cpython/commit/fa181fcf2156f703347b03a3b1966ce47be8ab3b
    https://github.com/python/cpython/issues/109858
    https://lists.debian.org/debian-lts-announce/2024/03/msg00024.html
    https://lists.debian.org/debian-lts-announce/2024/03/msg00025.html
    https://lists.fedoraproject.org/archives/list/[email protected]/message/T3IGRX54M7RNCQOXVQO5KQKTGWCOABIM/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/U5VHWS52HGD743C47UMCSAK2A773M2YE/
    https://mail.python.org/archives/list/[email protected]/thread/XELNUX2L3IOHBTFU7RQHCY6OUVEWZ2FG/
    https://www.bamsoftware.com/hacks/zipbomb/
    http://www.openwall.com/lists/oss-security/2024/03/20/5
    https://github.com/python/cpython/commit/30fe5d853b56138dbec62432d370a1f99409fc85
    https://github.com/python/cpython/commit/66363b9a7b9fe7c99eba3a185b74c5fdbf842eba
    https://github.com/python/cpython/commit/70497218351ba44bffc8b571201ecb5652d84675
    https://github.com/python/cpython/commit/a2c59992e9e8d35baba9695eb186ad6c6ff85c51
    https://github.com/python/cpython/commit/a956e510f6336d5ae111ba429a61c3ade30a7549
    https://github.com/python/cpython/commit/d05bac0b74153beb541b88b4fca33bf053990183
    https://github.com/python/cpython/commit/fa181fcf2156f703347b03a3b1966ce47be8ab3b
    https://github.com/python/cpython/issues/109858
    https://lists.debian.org/debian-lts-announce/2024/03/msg00024.html
    https://lists.debian.org/debian-lts-announce/2024/03/msg00025.html
    https://lists.debian.org/debian-lts-announce/2024/11/msg00005.html
    https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html
    https://lists.fedoraproject.org/archives/list/[email protected]/message/T3IGRX54M7RNCQOXVQO5KQKTGWCOABIM/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/U5VHWS52HGD743C47UMCSAK2A773M2YE/
    https://mail.python.org/archives/list/[email protected]/thread/XELNUX2L3IOHBTFU7RQHCY6OUVEWZ2FG/
    https://security.netapp.com/advisory/ntap-20250411-0005/
    https://www.bamsoftware.com/hacks/zipbomb/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High