CVE-2024-1968

Authorization Header Leakage in scrapy/scrapy on Scheme Change Redirects

Published May 20, 2024 CVSS 3.0 · 7.5 High EPSS < 1% KEV · Not listed
Description
In scrapy/scrapy, an issue was identified where the Authorization header is not removed during redirects that only change the scheme (e.g., HTTPS to HTTP) but remain within the same domain. This behavior contravenes the Fetch standard, which mandates the removal of Authorization headers in cross-origin requests when the scheme, host, or port changes. Consequently, when a redirect downgrades from HTTPS to HTTP, the Authorization header may be inadvertently exposed in plaintext, leading to potential sensitive information disclosure to unauthorized actors. The flaw is located in the _build_redirect_request function of the redirect middleware.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-1419 In scrapy/scrapy, an issue was identified where the Authorization header is not removed during redirects that only change the scheme (e.g., HTTPS to HTTP) but remain within the same domain. This behavior contravenes the Fetch standard, which mandates the removal of Authorization headers in cross-origin requests when the scheme, host, or port changes. Consequently, when a redirect downgrades from HTTPS to HTTP, the Authorization header may be inadvertently exposed in plaintext, leading to potential sensitive information disclosure to unauthorized actors. The flaw is located in the _build_redirect_request function of the redirect middleware.
Github GHSA Github GHSA GHSA-4qqq-9vqf-3h3f Scrapy leaks the authorization header on same-domain but cross-origin redirects
Ubuntu USN Ubuntu USN USN-7476-1 Scrapy vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.0014}

epss

{'score': 0.00144}

Type Values Removed Values Added
First Time appeared Scrapy
Scrapy scrapy
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:scrapy:scrapy:*:*:*:*:*:*:*:*
Vendors & Products Scrapy
Scrapy scrapy
Weaknesses

Sources

Status
PUBLISHED
Assigner
@huntr_ai
Published
Updated
Aug 1, 2024, 6:56 PM
Reserved
Feb 28, 2024, 11:17 AM
Status
Analyzed
Published
May 20, 2024, 8:15 AM
Modified
Jun 17, 2026, 7:05 AM