Vulnerability Description
During the TLS 1.3 handshake if multiple messages are sent in records that span encryption level boundaries (for instance the Client Hello and Encrypted Extensions messages), the subsequent messages may be processed before the encryption level changes. This can cause some minor information disclosure if a network-local attacker can inject messages during the handshake.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.24.12 |
References
- https://go.dev/cl/724120Patch
- https://go.dev/issue/76443Patch
- https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUcRelease Notes
- https://pkg.go.dev/vuln/GO-2026-4340Vendor Advisory
FAQ
What is CVE-2025-61730?
CVE-2025-61730 is a vulnerability with a CVSS score of 5.3 (MEDIUM). During the TLS 1.3 handshake if multiple messages are sent in records that span encryption level boundaries (for instance the Client Hello and Encrypted Extensions messages), the subsequent messages m...
How severe is CVE-2025-61730?
CVE-2025-61730 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-61730?
Check the references section above for vendor advisories and patch information. Affected products include: Golang Go.