Bug 2373305 (CVE-2025-4673)

Summary: CVE-2025-4673 net/http: Sensitive headers not cleared on cross-origin redirect in net/http
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin, fdeutsch, jwendell, oramraz, rcernich, smullick, stirabos, thason
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in net/http. The handling of Proxy-Authorization and Proxy-Authenticate headers during cross-origin redirects allows these headers to be inadvertently forwarded, potentially exposing sensitive authentication credentials. A network-based attacker can trigger this information disclosure by manipulating redirect responses. This results in the unintended exposure of authentication details to unauthorized parties.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2025-06-18 06:35:20 UTC
Proxy-Authorization and Proxy-Authenticate headers persisted on cross-origin redirects potentially leaking sensitive information.