Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | scrapy (PyPI) | 0.7 – 2.15.2 | — | No fix listed | GHSA-h7wm-ph43-c39p |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- scrapy (PyPI) Vendor— Affected 0.7 – 2.15.2 Fixed in — No fix listed GHSA-h7wm-ph43-c39p
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2017-14158
- 2026-10-03 Alias added: GHSA-h7wm-ph43-c39p
References
Advisory 2
More Scrapy vulnerabilities
- TI-2024-03333 Authorization Header Leak During Cross-Domain Redirect in scrapy/scrapy CVSS 3.0HIGH 7.5
- TI-2024-03331 XML External Entity (XXE) Vulnerability in scrapy/scrapy CVSS 3.0HIGH 7.5
- TI-2024-01831 Authorization Header Leakage in scrapy/scrapy on Scheme Change Redirects CVSS 3.0HIGH 7.5
- TI-2024-01761 ReDoS Vulnerability in scrapy/scrapy's XMLFeedSpider CVSS 3.1MEDIUM 6.5
- TI-2022-00495 Exposure of Sensitive Information to an Unauthorized Actor in scrapy/scrapy CVSS 3.1MEDIUM 6.5
- TI-2021-17964 HTTP authentication credential leak to target websites in scrapy CVSS 3.1MEDIUM 6.5
Sources
- CVE-2017-14158 · CVE Program
- CVE-2017-14158 · NVD
- FIRST EPSS
- GHSA-h7wm-ph43-c39p · GitHub Advisory Database · CC BY 4.0
- CVE-2017-14158 · Red Hat security data · CC BY 4.0
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