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Authorization Header Leakage in scrapy/scrapy on Scheme Change Redirects

Published May 20, 2024

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.

Affected products

Remediation

No remediation recorded yet.

Metrics

References (4)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner @huntr_ai
Published May 20, 2024
Updated Aug 1, 2024
Reserved Feb 28, 2024
CISA Vulnrichment
Updated Jun 18, 2024
NVD
Status Analyzed
Modified Jun 17, 2026
Red Hat
Severity n/a
Public date n/a
GHSA-4QQQ-9VQF-3H3F