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Public proof of conceptFix available

CVE-2024-3574

A public proof of concept exists; no exploitation attested.

  • Published2024-04-16
  • Fixed in2.11.1 · 1.8.4
  • WeaknessCWE-200

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2024-04-1600:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-27 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-3574?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-3574?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP · OSV
Scrapy
BranchAffectedFixed in
2.11< 2.11.12.11.1
2.x≥ 2, < 2.11.12.11.1
1.8< 1.8.41.8.4

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Scrapy to 2.11.1 · 1.8.4

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2024-04-18
  • OpenCVESSVC decisionpoc—
  • CNACVSS 3.07.5read 2026-10-23
  • CNAweakness (CWE)CWE-200read 2026-10-23
  • FIRST EPSSEPSS score0.6 %2026-10-26
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2024-04-16
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2024-3574?

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.

Is CVE-2024-3574 actively exploited?

A proof-of-concept exploit exists for CVE-2024-3574, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2024-3574?

CVE-2024-3574 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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