SEPTEMBER 18, 2026
Live Feed
Back to database
Case File

CVE-2026-84366

HIGH · CVSS 7.4 EPSS 0.16% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

Scrapy versions prior to 2.17.0 are vulnerable due to the S3DownloadHandler converting S3 requests into plaintext HTTP, exposing sensitive AWS credentials and S3 object contents to network attackers. This vulnerability allows for potential data breaches, response manipulation, and scraped-data poisoning, making it critical for users leveraging S3 with AWS credentials to prioritize upgrading to version 2.17.0. Organizations relying on Scrapy for web scraping and data extraction should take immediate action to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-84366
Severity
HIGH
CVSS
7.4
EPSS
0.16%

Original NVD Description

Scrapy is a high-level web crawling and scraping framework for Python. Prior to 2.17.0, in scrapy/core/downloader/handlers/s3.py, Scrapy's S3DownloadHandler converts an S3-scheme bucket and key request into a plaintext HTTP request to the corresponding S3 endpoint unless request.meta["is_secure"] is explicitly enabled, then signs and sends the plaintext request with configured AWS credentials. A network attacker who can observe traffic between Scrapy and S3 can read the bucket and key path, AWS Authorization header, X-Amz-Security-Token when temporary credentials are used, S3 object contents, and S3 response headers. An active man-in-the-middle attacker can also modify the plaintext S3 response body, status code, and headers before Scrapy processes them, causing scraped-data poisoning, poisoned exports, HTTP cache poisoning when caching is enabled, or influence over later crawl targets through forged redirects or attacker-controlled links. Users making S3-scheme requests with AWS credentials are affected. This issue is fixed in version 2.17.0.