CVE-2026-26014

Pion DTLS uses random nonce generation with AES GCM ciphers risks leaking the authentication key

CVSS 5.9 MEDIUMEPSS 0.6%CWE-200

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.9EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Pion DTLS is a Go implementation of Datagram Transport Layer Security. Pion DTLS versions v1.0.0 through v3.0.10 and 3.1.0 use random nonce generation with AES GCM ciphers, which makes it easier for remote attackers to obtain the authentication key and spoof data by leveraging the reuse of a nonce in a session and a "forbidden attack". Upgrade to v3.0.11, v3.1.1, or later.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

pion · dtls

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References

https://github.com/pion/dtls/commit/61762dee8217991882c5eb79856b9e7a73ee349f https://github.com/pion/dtls/commit/90e241cfec2985715efdd3d005972847462a67d6 https://github.com/pion/dtls/pull/796 https://github.com/pion/dtls/releases/tag/v3.0.11 https://github.com/pion/dtls/releases/tag/v3.1.1 https://github.com/pion/dtls/security/advisories/GHSA-9f3f-wv7r-qc8r