Vulnerability in Go Standard Library Net/http

CVE-2023-45289

When following an HTTP redirect to a domain which is not a subdomain match or exact match of the initial domain, an http.Client does not forward sensitive headers such as "Authorization" or "Cookie". For example, a redirect from foo.com to www.foo.com will forward the Authorization header, but a redirect to bar.com will not. A maliciously crafted HTTP redirect could cause sensitive headers to be unexpectedly forwarded.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-45289: held from 0.012 to 0.011.

EPSS over last 30 days · oldest: 0.012 · newest: 0.011 · change: -0.001

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-45289?
CVE-2023-45289 is a medium-severity vulnerability in Go Standard Library Net/http, classified under CWE-212: IMPROPER REMOVAL OF SENSITIVE INFORMATION BEFORE STORAGE OR TRANSFER. CVSS score: 4.3/10. Published 2024-03-05.
How severe is CVE-2023-45289?
Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2023-45289 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.