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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-91766

Cross-origin credential leak in HTTP stream wrapper redirects

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Status
Published
Published
Updated
Assigning organization
php

Description

When the http:// stream wrapper follows a redirect it forwards the user-supplied Authorization, Cookie and Proxy-Authorization headers unchanged, even when the redirect target is a different host, a different port, or a downgrade from HTTPS to HTTP. A server that can steer a redirect therefore receives credentials that were only meant for the original origin. This is the same class of issue that libcurl fixed in 7.58.0 ( CVE-2018-1000007 https://github.com/advisories/GHSA-g7x2-hrfp-pv5f ).

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

PHP Group PHP

Default version status: unaffected

  • 8.2.* to < 8.2.34affected
  • 8.3.* to < 8.3.35affected
  • 8.4.* to < 8.4.26affected
  • 8.5.* to < 8.5.11affected

References