Information disclosure in Pion Dtls
CVE-2026-26014
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001
Affected products
- Pion Dtls — versions = 3.1.0, < 3.0.11
Weakness classification (CWE)
References
- github.com/pion/dtls/security/advisories/GHSA-9f3f-wv7r-qc8r (Patch, Vendor Advisory)
- github.com/pion/dtls/pull/796 (Issue Tracking)
- github.com/pion/dtls/commit/61762dee8217991882c5eb79856b9e7a73ee349f (Patch)
- github.com/pion/dtls/commit/90e241cfec2985715efdd3d005972847462a67d6 (Patch)
- github.com/pion/dtls/releases/tag/v3.0.11 (Release Notes)
- github.com/pion/dtls/releases/tag/v3.1.1 (Release Notes)
Frequently asked questions
- What is CVE-2026-26014?
- CVE-2026-26014 is a medium-severity vulnerability in Pion Dtls, classified under Information Disclosure. CVSS score: 5.9/10. Published 2026-02-11.
- How severe is CVE-2026-26014?
- Medium severity. CVSS v3 base score is 5.9 out of 10.