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CVE-2019-9674
Lib/zipfile.py in Python through 3.7.2 allows remote attackers to cause a denial of service (resource consumption) via a ZIP bomb.
- 7.5HighCVSS base score
- 5.6%Exploitation in 30 daysEPSS · top 6.9% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Lib/zipfile.py in Python through 3.7.2 allows remote attackers to cause a denial of service (resource consumption) via a ZIP bomb.
Timeline
ID reserved
By mitre
- 11 months later
· 11 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 5.6% · top 6.9% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
10
- https://www.python.org/news/security/ (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/python/cpython/blob/master/Lib/zipfile.py (opens in a new tab)x_refsource_MISCx_transferred
- https://bugs.python.org/issue36462 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugs.python.org/issue36260 (opens in a new tab)x_refsource_MISCx_transferred
- https://python-security.readthedocs.io/security.html#archives-and-zip-bomb (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20200221-0003/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2020:0274 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2020:0696 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- USN-4428-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-19040 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2019-9674)Record last updated .