Read the docs
TI-2024-03333 Aliases CVE-2024-3574GHSA-cw9j-q3vf-hrrv

Authorization Header Leak During Cross-Domain Redirect in scrapy/scrapy

Priority HIGH 72CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

In scrapy version 2.10.1, an issue was identified where the Authorization header, containing credentials for server authentication, is leaked to a third-party site during a cross-domain redirect. This vulnerability arises from the failure to remove the Authorization header when redirecting across domains. The exposure of the Authorization header to unauthorized actors could potentially allow for account hijacking.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00648 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed scrapy/scrapy (scrapy): 2.11.1scrapy (PyPI): 2.11.1, 1.8.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
scrapyscrapy/scrapybefore 2.11.12.11.1Patch availableCNA
—scrapy (PyPI)2 to before 2.11.12.11.1Patch availableGHSA-cw9j-q3vf-hrrv
—scrapy (PyPI)before 1.8.41.8.4Patch availableGHSA-cw9j-q3vf-hrrv
  • scrapy/scrapy Vendorscrapy Affected before 2.11.1 Fixed in 2.11.1 Patch available CNA
  • scrapy (PyPI) Vendor— Affected 2 to before 2.11.1 Fixed in 2.11.1 Patch available GHSA-cw9j-q3vf-hrrv
  • scrapy (PyPI) Vendor— Affected before 1.8.4 Fixed in 1.8.4 Patch available GHSA-cw9j-q3vf-hrrv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:scrapy:scrapy:*:*:*:*:*:*:*:*before 2.11.1Vulnerablescrapy
  • cpe:2.3:a:scrapy:scrapy:*:*:*:*:*:*:*:* Versions before 2.11.1 Vulnerable ·scrapy

Remediation

  • Fix · CNA scrapy/scrapy (scrapy) Fixed in 2.11.1
  • Fix · GHSA-cw9j-q3vf-hrrv scrapy (PyPI) Fixed in 2.11.1 Advisory →
  • Fix · GHSA-cw9j-q3vf-hrrv scrapy (PyPI) Fixed in 1.8.4 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    scrapy/scrapy 2.11.1

    2 records Highest priority Priority HIGH 2 HIGH

    Other records, highest priority first

    • TI-2024-03331 XML External Entity (XXE) Vulnerability in scrapy/scrapyPriority HIGH 72
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-3574
  2. 2026-10-03 Alias added: GHSA-cw9j-q3vf-hrrv
  3. 2026-10-18 EPSS moved to the 50th–90th percentile

References

Exploit 1

Patch 1

Advisory 1

Other 3

  • 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-2017-10313 Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via… 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences