CVE-2026-26014
Nonce Reuse Vulnerability in Pion DTLS Enables Key Spoofing
Publication date: 2026-02-11
Last updated on: 2026-02-25
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| pion | dtls | to 3.1.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-200 | The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in Pion DTLS, a Go implementation of Datagram Transport Layer Security, specifically in versions v1.0.0 through v3.1.0. It involves the use of random nonce generation with AES GCM ciphers that can lead to nonce reuse within a session. This nonce reuse makes it easier for remote attackers to obtain the authentication key and perform a "forbidden attack," allowing them to spoof data.
How can this vulnerability impact me? :
The vulnerability can allow remote attackers to obtain the authentication key used in the DTLS session. This can lead to data spoofing, where attackers can inject or alter data in the communication stream without detection. Such an attack compromises the integrity and authenticity of the data transmitted, potentially leading to unauthorized actions or misinformation.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade Pion DTLS to version v3.1.0 or later.