CVE-2026-32283
Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls
Description
If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.
INFO
Published Date :
April 8, 2026, 2:16 a.m.
Last Modified :
April 8, 2026, 2:16 a.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-32283
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
- Apply vendor-provided patches for TLS 1.3.
- Ensure TLS 1.3 handles key updates correctly.
- Monitor resource consumption on TLS connections.
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-2026-32283.
| URL | Resource |
|---|---|
| https://go.dev/cl/763767 | |
| https://go.dev/issue/78334 | |
| https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU | |
| https://pkg.go.dev/vuln/GO-2026-4870 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-32283 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-2026-32283
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-2026-32283 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-32283 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]
Apr. 08, 2026
Action Type Old Value New Value Added Description If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3. Added Reference https://go.dev/cl/763767 Added Reference https://go.dev/issue/78334 Added Reference https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU Added Reference https://pkg.go.dev/vuln/GO-2026-4870