CVE-2025-61730
Handshake messages may be processed at the incorrect encryption level in crypto/tls
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.
INFO
Published Date :
Jan. 28, 2026, 8:16 p.m.
Last Modified :
Jan. 28, 2026, 8:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-61730
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update systems to the latest TLS 1.3 implementation.
- Ensure proper handling of handshake message boundaries.
- Validate encryption level transitions during handshakes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-61730.
| URL | Resource |
|---|---|
| https://go.dev/cl/724120 | |
| https://go.dev/issue/76443 | |
| https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc | |
| https://pkg.go.dev/vuln/GO-2026-4340 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-61730 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-61730
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-61730 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-61730 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Jan. 28, 2026
Action Type Old Value New Value Added 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. Added Reference https://go.dev/cl/724120 Added Reference https://go.dev/issue/76443 Added Reference https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc Added Reference https://pkg.go.dev/vuln/GO-2026-4340