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CVE-2024-45336: Sensitive headers incorrectly sent after cross-domain redirect in net/http
Description
The HTTP client drops sensitive headers after following a cross-domain redirect. For example, a request to a.com/ containing an Authorization header which is redirected to b.com/ will not send that header to b.com. In the event that the client received a subsequent same-domain redirect, however, the sensitive headers would be restored. For example, a chain of redirects from a.com/, to b.com/1, and finally to b.com/2 would incorrectly send the Authorization header to b.com/2.
Classification
CVE ID: CVE-2024-45336
Affected Products
Vendor: Go standard library
Product: net/http
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 18.25% (scored less or equal to compared to others)
EPSS Date: 2025-02-27 (when was this score calculated)
References
https://go.dev/cl/643100https://go.dev/issue/70530
https://groups.google.com/g/golang-dev/c/CAWXhan3Jww/m/bk9LAa-lCgAJ
https://groups.google.com/g/golang-dev/c/bG8cv1muIBM/m/G461hA6lCgAJ
https://pkg.go.dev/vuln/GO-2025-3420