CVE-2017-14158
Scrapy denial of service vulnerability
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.5
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
CVE-2017-14158- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-400
- Updated
- 2026-11-02
CVE List No score
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
CVE-2017-14158- Updated
- 2026-11-02
EUVDEUVD-2017-0128 No score
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
EUVD-2017-0128- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h7wm-ph43-c39p
7.5
Scrapy denial of service vulnerability
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
GHSA-h7wm-ph43-c39p- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSV
7.5
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
CVE-2017-14158- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-14158
7.5
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
DEBIAN-CVE-2017-14158- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-h7wm-ph43-c39p
7.5
Scrapy denial of service vulnerability
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
GHSA-h7wm-ph43-c39p- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-14158
7.5
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
UBUNTU-CVE-2017-14158- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVPYSEC-2017-83 No score
Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.
- Record
PYSEC-2017-83- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
scrapyPyPI |
0.7 to 2.15.2 | None known |
python-scrapyDebian:12 |
All versions, plus listed versions 2.10.0-12.11.0-12.11.0-22.11.1-12.11.1-2 Show 22 moreShow less2.11.2-12.11.2-22.11.2-32.12.0-12.12.0-22.13.1-1~exp12.13.3-12.13.3-1~exp12.13.4-12.13.4-22.14.0-12.14.1-12.14.2-12.15.1-12.16.0-12.16.0-22.17.0-12.18.0-12.8.0-22.9.0-12.9.0-1~exp12.9.0-2 |
None known |
python-scrapyDebian:13 |
All versions, plus listed versions 2.12.0-22.13.1-1~exp12.13.3-12.13.3-1~exp12.13.4-1 Show 9 moreShow less2.13.4-22.14.0-12.14.1-12.14.2-12.15.1-12.16.0-12.16.0-22.17.0-12.18.0-1 |
None known |
python-scrapyDebian:14 |
All versions, plus listed versions 2.12.0-22.13.1-1~exp12.13.3-12.13.3-1~exp12.13.4-1 Show 9 moreShow less2.13.4-22.14.0-12.14.1-12.14.2-12.15.1-12.16.0-12.16.0-22.17.0-12.18.0-1 |
None known |
scrapyPyPI |
0.7 to 2.15.2, plus listed versions 0.10.4.23640.12.0.25500.14.10.14.20.14.3 Show 45 moreShow less0.14.40.16.00.16.10.16.20.16.30.16.40.16.50.18.00.18.10.18.20.18.30.18.40.20.00.20.10.20.20.22.00.22.10.22.20.24.00.24.10.24.20.24.30.24.40.24.50.24.60.80.91.0.01.0.0rc11.0.0rc21.0.0rc31.0.11.0.21.0.31.0.41.0.51.0.61.0.71.1.01.1.0rc11.1.0rc21.1.0rc31.1.0rc41.1.11.1.2 |
None known |
scrapyPyPI |
0.7 and later, plus listed versions 0.10.4.23640.12.0.25500.14.10.14.20.14.3 Show 45 moreShow less0.14.40.16.00.16.10.16.20.16.30.16.40.16.50.18.00.18.10.18.20.18.30.18.40.20.00.20.10.20.20.22.00.22.10.22.20.24.00.24.10.24.20.24.30.24.40.24.50.24.60.80.91.0.01.0.0rc11.0.0rc21.0.0rc31.0.11.0.21.0.31.0.41.0.51.0.61.0.71.1.01.1.0rc11.1.0rc21.1.0rc31.1.0rc41.1.11.1.2 |
None known |
python-scrapyUbuntu:16.04:LTS |
All versions, plus listed versions 1.0.0-11.0.3-1 |
None known |
python-scrapyUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.3.0-1~exp21.4.0-11.5.0-11.5.0-1ubuntu0.1~esm1 |
None known |
python-scrapyUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.7.3-11.7.3-1ubuntu0.1~esm1 |
None known |
python-scrapyUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 2.4.1-22.5.1-22.5.1-2ubuntu0.1~esm1 |
None known |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
python-scrapyUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 2.10.0-12.11.0-12.11.0-22.11.1-12.11.1-1ubuntu0.1~esm2 |
None known |
python-scrapyUbuntu:25.10 |
All versions, plus listed versions 2.12.0-2 |
None known |
python-scrapyUbuntu:26.10 |
All versions, plus listed versions 2.14.1-12.17.0-12.18.0-2 |
None known |
python-scrapyUbuntu:26.04:LTS |
All versions, plus listed versions 2.12.0-22.14.0-12.14.1-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-14158 is a high vulnerability (CVSS 7.5) in Scrapy, published September 5, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.60%, the 85th percentile. No source names a fixed version.
References
github.com/scrapy/scrapy/issues/482
blog.csdn.net/wangtua/article/details/75228728
nvd.nist.gov/vuln/detail/CVE-2017-14158
github.com/pypa/advisory-database/blob/8b7a4d62a95e8f605e5dfb4e0b4f299e6403dc12/vulns/scrapy/PYSEC-2017-83.yaml
github.com/pypa/advisory-database/tree/main/vulns/scrapy/PYSEC-2017-83.yaml
github.com/advisories/GHSA-h7wm-ph43-c39p
Left out here: 112 versions. The JSON record has them.