CVE-2026-59882
Description
A flaw was found in guzzlehttp/psr7, a PHP library for HTTP messages. The Uri::assertValidHost() function fails to properly validate URI host components, allowing for the inclusion of authority delimiters, embedded ports, or malformed IPv6 brackets. This improper validation can lead to discrepancies between the URI host and the authority used for security or routing decisions, potentially enabling security bypasses or misrouting of requests.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Understanding the Weakness (CWE)
Other
Technical Impact: Varies by Context
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