CVE-2024-0450: Python · Quoted zip-bomb protection for zipfile
Affects pythonSource GCVE Database
Not known to be exploited · CVSS 6.2 Medium · fixed in 3.12.2 : update python when convenient.
Data as of 4 Nov 2026, 18:28 UTC
Thin evidence
One scorer or none| CNA (PSF) | CVSS 3.1 | 6.2 |
|---|
- Patch
- Available – fixed in 3.12.2, 3.11.8, 3.10.14 +2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 Mar 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Bitnamipythonpkg:bitnami/pythonOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Apply the official fixes by upgrading to CPython versions 3.8.19, 3.9.19, 3.10.14, 3.11.8, or 3.12.2 or later. These versions include the patch that rejects zip archives with overlapping entries, effectively mitigating the vulnerability.
Description
The CPython zipfile module was vulnerable to a 'quoted-overlap' zip-bomb attack that exploited overlapping entries in zip archives to create highly compressed zip-bombs. This vulnerability affected multiple Python versions prior to fixed releases. The issue was addressed by making the zipfile module reject zip archives with overlapping entries.
References
- openwall.com/lists/oss-security/2024/03/20/5 (opens in a new tab)
- github.com/python/cpython/commit/30fe5d853b56138dbec62432d370a1f99409fc85 (opens in a new tab)
- github.com/python/cpython/commit/66363b9a7b9fe7c99eba3a185b74c5fdbf842eba (opens in a new tab)
- github.com/python/cpython/commit/70497218351ba44bffc8b571201ecb5652d84675 (opens in a new tab)
- github.com/python/cpython/commit/a2c59992e9e8d35baba9695eb186ad6c6ff85c51 (opens in a new tab)
- github.com/python/cpython/commit/a956e510f6336d5ae111ba429a61c3ade30a7549 (opens in a new tab)
- github.com/python/cpython/commit/d05bac0b74153beb541b88b4fca33bf053990183 (opens in a new tab)
- github.com/python/cpython/commit/fa181fcf2156f703347b03a3b1966ce47be8ab3b (opens in a new tab)
- github.com/python/cpython/issues/109858 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/03/msg00024.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/03/msg00025.html (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3IGRX54M7RNCQOXVQO5KQKTGWCOABIM/ (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5VHWS52HGD743C47UMCSAK2A773M2YE/ (opens in a new tab)
- mail.python.org/archives/list/security-announce@python.org/thread/XELNUX2L3IOHBTFU7RQHCY6OUVEWZ2FG/ (opens in a new tab)
- bamsoftware.com/hacks/zipbomb/ (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2024-0450 (opens in a new tab)
- security.netapp.com/advisory/ntap-20250411-0005/ (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/11/msg00005.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/12/msg00000.html (opens in a new tab)