What is CVE-2025-47910?

CVE-2025-47910 is a medium-severity vulnerability in Go Standard Library Net/http, classified under CWE-284: IMPROPER ACCESS CONTROL. CVSS score: 5.4/10. Published 2025-09-22.

How severe is CVE-2025-47910?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2025-47910 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Go Standard Library Net/http

CVE-2025-47910

When using http.CrossOriginProtection, the AddInsecureBypassPattern method can unexpectedly bypass more requests than intended. CrossOriginProtection then skips validation, but forwards the original request path, which may be served by a different handler without the intended security protections.

EPSS: 0.003 (23.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Go Standard Library Net/http — versions 1.25.0

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-47910?: CVE-2025-47910 is a medium-severity vulnerability in Go Standard Library Net/http, classified under CWE-284: IMPROPER ACCESS CONTROL. CVSS score: 5.4/10. Published 2025-09-22.
How severe is CVE-2025-47910?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-47910 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.